I’m sure other people have already gotten to a lot of this, but there’s so much out there right now that I thought it would be helpful to have it all in one place. Below the cut, I’ll break down the scenes in the trailer and discuss locations, characters, costumes, episodes, etc. and what those tell us about each other. In some cases that isn’t much, but we do what we can. My main goal is to just tie what we see in the trailer to what we know from setlock, not to speculate on the plot/what it possibly means in the larger context of the show. It’s meant more as a resource for that kind of speculation, rather than being a source of it. That doesn’t mean that what’s below isn’t potentially spoilery, however, so if you’re looking to avoid that, you’d be better off not reading this.

(Fair warning that this post is very picture heavy and very long, which is why it’s under a cut.)

Filming location: 221B set

Characters: Sherlock, someone else in the background (more easily visible in video, rather than still pics)

Costumes: Sherlock - suit jacket, white/light-colored shirt, no facial hair; Person in background - black/dark clothing

Episode: 3

The person in the background could be John (or just about anyone else really). As this was on the 221B set, it could have been filmed just about any time, so we can’t really narrow it down too much to a particular filming day or even block. Sherlock’s costume might connect to other scenes that we can identify though. The lack of facial hair makes me think it’s probably not from episode 2, though it could be really early or really late in the episode, I suppose.



ETA: I am almost positive this is the scene shown in Mark’s intro that was shown after TAB in the U.S. During the portion where he discusses episode 3, we are shown two behind-the-scenes clips:

If you put these two together, you should get this scene from the SDCC trailer–Sherlock sitting in his chair with his fingers steepled against his chin and Mycroft standing between the client chair and the coffee table. The slate indicates that this is episode 3.









Filming location: Cardiff University Students’ Union, 4th floor

Characters: John

Costumes: Dark coat

Episode: 2

The wall behind the bed matches the wall on the left in this room where they filmed on the 4th floor:

I know there’s been some speculation that this could be Toby Jones instead of Martin, but those are definitely Martin’s ears. I think it’s more obvious that it’s him with the image lightened:

The costume looks like a probable match for this image, which is the only picture we have of Martin on the 4th floor. Also, I’ve seen speculation that this could be a flashback to the missing time in HLV, but I’m thinking it has to be set within the s4 time frame because if you look at the top of his head in the lightened pic, you can see that his hair looks like it’s kind of slicked back as it would be with the swoopy s4 hair, rather than John’s s3 hair.

The filming on the 4th floor was where Ben was spotted in his sweats/hoodie. The speculation back then was that he was changing out of that and into a hospital gown or something similar, and I think that seems even more likely true now, based on this shot in the trailer clearly being someone’s hospital room. Other characters seen in costume on the 4th floor that day include Culverton Smith and Nurse Cornish.





Filming location: ?

Characters: Sherlock

Costumes: Belstaff

Episode: ?

My initial thought was that maybe this was the pool at Miskin Manor, even though we didn’t see any night shoots there (but doesn’t mean they couldn’t have done one without us knowing), but the pool there doesn’t seem to be a match. I know a few others have looked into this, too, but so far I don’t think anyone has found a definite match.

My best guess at this point is that this could potentially be at Ty Gwyn. I found a proposal to add a pool there from earlier this year, and we know they did a night shoot there, so it’s possible this could be from that. I would take that with a grain of salt though because I don’t have any way to really confirm that–I don’t even know for sure that it would be an indoor pool or if it’s even finished being built already. But that’s my best guess at the moment. If true, that would make this part of episode 3.

The image is too dark to tell anything about Sherlock’s costume beyond the fact that he’s clearly wearing his coat–I tried lightening it, and it didn’t help at all.





Filming location: Senedd?

Characters: Lady Smallwood

Costumes: Black and white horizontally striped jacket, black shirt/dress, pearls

Episode: 1?

We know they filmed at the Senedd, so that’s my best guess for this location–it’s where they filmed the government scenes in HLV, so it seems the most logical choice for this to have been filmed there as well. She obviously must be speaking to Sherlock here, and we also did get a very distant picture of Ben in the Senedd, so that matches up nicely.

I’ve seen a little speculation about her costume being a near-match for the end of HLV, where she wears this during the discussion with Mycroft:

But we actually see her in a different costume after this. This is what she’s wearing when the Moriarty video appears at the end of the episode (which makes sense because it would be a different day):

So at the very least I think we can rule out that this scene in the trailer takes place the same day as the tarmac scene/TAB. If I had to guess, I would put it not long after though, just based on the dialogue (”We brought you back to deal with this. What are you going to do?”). Therefore, it seems most likely this scene is from episode 1. Also, the Senedd shoot was definitely under Rachel’s direction, so if that indeed is the location for this scene, episode 1 would be correct.





Filming location: Main hall, St. Catherine’s Fort, Tenby

Characters: Armed men

Costumes: Dark pea coats, black trousers, black shoes, dark grey knit caps

Episode: 3



This should be the main hall of the fort, according to the St. Catherine’s Island website.



This pic is from the opposite direction/end of the hall from the trailer, looking toward where they’re running from rather than where they’re running to. The barred area you can see on the left in the pic above is barely visible in the darkness on the right in the pic from the trailer. Here it is lightened to make it easier to see:



The men running down the hall are pretty obviously those seen at the St. Catherine’s Island filming as well.







Filming location: Coedarhydylgyn?

Characters: Sherlock

Costumes: Belstaff, blue scarf, no facial hair

Episode: 1?



I think based on the scarf that it’s likely episode 1. You can see it better in the lightened version, of course:

He’s wearing the blue scarf we saw him wearing on Cyncoed Road, on Wordsworth Avenue, in the series of scenes with the dog in London, and on/around Vauxhall Bridge, all of which are part of episode 1. We haven’t really seen him wearing scarves for episode 2 or 3 (and again there’s no facial hair here, so 2 is unlikely anyway), so I think episode 1 makes the most sense here.

The location is harder to narrow down, but my best guess here is Coedarhydyglyn. The curtains and window that we matched to the first “back” picture are in a room that looks to be about this color:

It’s not great proof, but it’s the best guess I’ve got right now.





Filming location: Margam Abbey Ruins, Margam Country Park

Characters: Mary?

Costumes: Dark hooded jacket/raincoat, cuffed jeans, white shoes

Episode: 1?



This seems to have been filmed at the vestibule of the former chapter house at Margam Abbey:

[source] (and big thanks to @hotsmugstache for researching the location while I was busy driving home Sunday night)



The vestibule doesn’t actually connect to the current Margam Abbey (which is the remaining intact portion of what once was a much larger abbey that these ruins also would have been part of), but it’s right next to it. Margam Abbey is where they reportedly filmed a christening scene, but whether or not this vestibule is intended to actually represent a story location connected to that or was just a convenient place to film a separate story location remains to be seen. We also don’t know for sure that they filmed this at the same time as the other Margam Abbey scenes, but if they did, that would definitely make this part of episode 1.

The person with the torch I am pretty certain is Mary. I happened to grab a screencap when the lightning flashes, and the shoes are definitely white:

It also appears that the jeans are cuffed/rolled at the bottom, which you can see a little better here (and in the actual video):

We also saw Mary wearing a dark blue, hooded jacket of a similar length in the scenes filmed in London for episode 1. Actually, those scenes have her wearing all three of these things at once–white shoes, cuffed jeans, hooded jacket:



All taken together, I think this is pretty convincingly Mary in episode 1, but obviously we can’t be certain beyond a doubt as we don’t see her face.





Filming location: Mycroft’s office set

Characters: Mycroft

Costumes: Dark grey three-piece suit, white shirt, blue tie with an “I” pattern, blue pocket square with white stripe, thin gold tie bar with black stone

Episode: 3?



This is in the studio, and we’ve hardly seen Mark in costume at all during filming, so I have pretty much nothing to connect this with at the moment.

ETA: Based on the second trailer, I would say this is quite likely episode 3. We see Mycroft in this costume in several scenes, and Sherlock and John are both in episode 3 costumes there.





Filming location: 221B set

Characters: John, someone in the ”client” chair

Costumes: John - Black coat, solid grey/blue shirt, jeans; “client” - black coat?

Episode: 2?



John’s costume is quite possibly a match to both the one he wore for North Gower Street filming and on the fourth floor of the Students’ Union:

That would put this scene in episode 2, if correct.

The client could be Greg, who we’ve seen in a black coat, or just about anyone else, really. It could maybe even be the lady in red, who we saw wearing a black coat when she and Sherlock were filming all over London.





Filming location: Morocco

Characters: Mary

Costumes: Black and white striped shirt, head scarf, gun, no wedding ring

Episode: 1



I suppose it isn’t absolutely certain that this was filmed in Morocco, but it seems by far the most likely option, as we know Amanda went there to film. That bit of filming took place during the second block of filming, but according to imdb the Morocco scenes were for episode 1. However, since imdb isn’t always accurate, I’m marking that as unconfirmed.





Filming location: St. Catherine’s Island, Tenby?

Characters: –

Costumes: –

Episode: 3



I’m pretty sure this is Tenby and not Southerndown. It doesn’t look like there was a camera attached to the front of the helicopter in Southerndown, and there definitely was one attached to the one in Tenby. I’m also thinking that the pole that you can see on the right in this image is likely the flagpole on top of the fort:

We’ve also only seen the helicopters associated with episode 3, so regardless of whether it’s Tenby, Southerndown, or somewhere else entirely, I would say this is for ep 3.





Filming location: Portland House

Characters: Masked people, scared people

Costumes: Masked people - all black clothing, black balaclavas; scared people - various, a couple of them seem to maybe have blankets around their shoulders

Episode: 1



We know for sure that this is the set in Portland House because we got this matching picture of it during filming (as well as a picture of someone in a balaclava there):

The scared person on the right, ducking behind the lion statue looks like a possible match for the man with the brown blanket in the pictures of the supporting actors outside Portland House:

I would presume then that these other supporting actors are also in this same scene.

ETA: @to-johnlock-hell-in-a-handbasket pointed out that the woman in the center of that picture with the multicolored blanket is also likely the person seen ducking for cover on the left side of the table in the trailer scene:

So that’s further confirmation that all these supporting actors are likely the ones apparently under siege here.





Filming location: ?

Characters: Culverton Smith, John, Sherlock

Costumes: Smith - light grey jacket, pink shirt, dark red paisley cravat, pink pocket square; John - tattersall check button-down shirt, navy jacket; Sherlock - Belstaff, navy shirt, facial hair

Episode: 2



This seems to be in a cark park of some sort, judging by the view out the windows when we see Sherlock and John. That doesn’t really narrow it down much though. And I think it’s pretty clear that they’re in the back of the limo we saw at Miskin and Mount Stuart Square.

The costumes for John and Sherlock are the same that we saw through most of the filming in Miskin (except in Miskin Sherlock had the dressing gown on instead of the coat), as well as for some of the scenes at the Students’ Union. The last day there, Toby was also seen on the third floor wearing a light pink shirt.





Filming location: Dunraven Bay, Southerndown

Characters: Safety crew

Costumes: Safety vests

Episode: 3



This is the helicopter that lands on the beach at Dunraven Bay.

It’s definitely episode 3, as we saw Benjamin Caron there, and it’s the same helicopter we saw Andrew Scott filming in front of.





Filming location: Gun room, St. Catherine’s Fort, Tenby

Characters: Armed men

Costumes: Dark pea coats, black trousers, black shoes, dark grey knit caps

Episode: 3

This is the gun room, according to the St. Catherine’s Island website. The pic is from the opposite direction/side of the corridor from the trailer.



The men running down the hall are pretty obviously those seen at the St. Catherine’s Island filming as well.

This is essentially just a different angle on the scene we see of them earlier in the trailer.





Filming location: ?

Characters: Molly

Costumes: White lab coat, cream-colored shirt with sailboat pattern

Episode: 2?



We don’t have any close-up pics of Molly in this shirt during filming, but I think it might be the same shirt she’s wearing in Miskin:

She seems to be wearing a turquoise cardigan over it (and under the lab coat) when they’re actually filming though, so I’m not absolutely certain it’s the same costume. If it is though, it’s from episode 2.

I looked at some scenes from the previous episodes, and it doesn’t appear to be the morgue or the lab at Barts, at least, though that isn’t particularly helpful.





ETA: I think this shot may be in front of the open doors of the ambulance. You can see that there are yellow poles in the back like that in the second trailer:

I don’t know for sure that it’s from this same scene, but it could be. It would definitely be episode 2 if that is in front of the ambulance though.





Filming location: ?

Characters: Sherlock

Costumes: Belstaff, navy shirt, facial hair

Episode: 2



The facial hair is an obvious giveaway that this is episode 2, and the navy shirt (you can see the sleeve peeking out of his coat sleeve there) seems to indicate it’s the same day as most of the rest of the episode 2 filming we saw.

Several people have pointed out that something appears to be going on with Sherlock’s hands here–lesions, burns, something to that effect…

The location looks like a morgue, but it doesn’t match the one at Barts, which looks like this:

Nor does it match the morgue in Sherlock’s mind palace in HLV:

Wherever it is, I will say that I doubt that it’s in the same location as the Molly scene we see before it in the trailer. It’s cut to imply that this is Sherlock reacting to her words, but the lighting in this scene has a cooler, blue tint to it, while the lighting in Molly’s scene has a warmer, yellow tint.





Filming location: ?

Characters: Culverton Smith

Costumes: Light grey jacket, pink shirt, dark red paisley cravat

Episode: 2



I’m not certain about the color of the shirt because of the blue-tinted lighting here, but I think this costume is a match for the one we see earlier in the trailer where he talks to John and Sherlock in the limo.

The cravat he’s wearing here seems to have the same pattern as best I can tell, and the shirt looks like it’s similarly textured as well.





Filming location: Miskin

Characters: –

Costumes: –

Episode: 2



While we didn’t see this particular bit of it, this is certainly from the chase sequence they were filming on their first day in Miskin. Nick Hurran was the one directing in Miskin, so this is definitely for episode 2.





Filming location: ?

Characters: Wiggins

Costumes: Dark jumper

Episode: 2?



As best I can tell, it looks like the same jumper we saw Wiggins wearing during the filming at Mount Stuart Square:

That would likely make this scene part of episode 2.

My best guess is that the scene was filmed in the 221B set, simply because Wiggins was part of the Mount Stuart Square scene with the fake walls of the flat. (This scene in the trailer obviously isn’t the bit with the fake walls, but his presence for that bit of filming could indicate that he appears in the actual 221B at some point, as well.) But that’s really just a guess. There isn’t enough that’s really visible around him to identify a location very well.





Filming location: ?

Characters: Sherlock, masked man

Costumes: Sherlock - dark suit, maroon shirt, no facial hair; masked man - dark hoodie, dark trousers, black balaclava

Episode: ?

I don’t have a ton of ideas on this one. We did see Sherlock wear a shirt this color on Cyncoed Road, but that wasn’t a night shoot (though they could have faked it, I suppose), and when we saw him outside at least, he had on the Belstaff and the blue scarf as well.

(See the other part of this scene farther below for more speculation.)





Filming location: ?

Characters: Sherlock

Costumes: Dark jacket, dark shirt, no facial hair, gun

Episode: ?



Your guess is as good as mine on this one. It’s quick and blurry, and I can’t make much with it. Sherlock’s shirt seems to be a similar color to his jacket, but even that is hard to say with any certainty.





Filming location: 221B set

Characters: Greg

Costumes: Tattersall check shirt, black coat

Episode: ?



The shirt doesn’t appear to match the one we saw him in at Cyncoed Road.

Beyond that, we haven’t seen Rupert in costume enough to really have a lot of clues to work with here.





ETA: I think this is episode 1. It seems to be the same shirt that Greg is wearing in the second trailer, as well as the clip from Colbert (and I believe the behind-the-scenes bits at Coedarhydyglyn during Mark’s s4 intro after TAB, too–which is why I think this is ep 1).





Filming location: ?

Characters: Sherlock, masked man

Costumes: Sherlock - dark suit, maroon shirt, no facial hair; masked man - dark hoodie, dark trousers, black balaclava, bandage on left hand

Episode: ?



I talked about Sherlock’s costume in the first part of this scene above, but let’s talk a little about the location here. There’s a grey countertop here, which sits slightly higher than a white one to the left of it, and there are windows/doors in the background. My first thought was the house on Beach Road in Southerndown, as @cupidford​ established they’d likely filmed in the kitchen area, but the countertops there are darker, and where these windows/doors are in the trailer, there’s a hallway in the actual house. I also looked at the interior photos of the house on Cyncoed Road, since that’s what scene Ben’s shirt at least matches up with, but that kitchen isn’t a match either. There are several houses they’ve filmed in for episode 3 though, and that seems to be the ep for which they’ve done the most night shoots that we couldn’t see as well, so perhaps this is Ty Gwyn or the farm house in Lower Machen or somewhere else that we didn’t find.





Filming location: Morocco

Characters: Mary

Costumes: Head scarf, gun, no wedding ring, brown hair

Episode: 1



This appears to be a continuation of the earlier Mary scene. The same info about Morocco and episode 1 applies here.







Filming location: ?

Characters: John

Costumes: Black Haversack coat, light-colored shirt

Episode: ?



I think this is the Haversack, as you can see the texture of the collar, especially when the image is lightened:

As for the location, the implication in the trailer is clearly that John gets rear-ended by another car here–his eyes even flick up to the mirror as if he’s watching someone closing in. However, my instincts tell me that because they put it in the trailer that way, that’s what they want us to think and it’s probably wrong, lol. Also, looking at the lights out of John’s window here, I don’t think it’s a match for the location with the car collision, where there are plenty of trees in the background instead (see below).



If I had to make a wild and largely unsubstantiated guess here, I’d say maybe John is driving the Aston Martin through London. There was the report of a late night scene at Victoria Embankment with a speeding red sports car as part of episode 2 filming, and I feel like this scene could potentially be from that. I think that would be a better match for the lights at least than the trees in the collision scene are. That being said, that’s entirely a shot in the dark, so don’t take it as fact.





Filming location: Coedarhydyglyn

Characters: –

Costumes: –

Episode: 1



There were some damaged cars seen in Cardiff but never decisively connected to anything being filmed for Sherlock. However, the grey car that we saw then has hubcaps/rims that seem to match the grey car that is being rear-ended here.

The damage also looks like it could be a match for having been rear-ended.

The grass and gravel match the later scene in the trailer of the explosion, which would put this collision scene at Coedarhydyglyn (see below). Both that location and the date we saw the damaged cars in Cardiff point toward this being part of episode 1.





Filming location: 221B set

Characters: Sherlock

Costumes: Navy dressing gown, navy shirt, black trousers, facial hair

Episode: 2



The costume is a match for what Sherlock wears at the house in Miskin. Along with the facial hair, it’s clearly episode 2. (Also, dear lord the flat is a mess.)





Filming location: Coedarhydyglyn

Characters: –

Costumes: –

Episode: 1



This appears to connect to the car collision scene from earlier in the trailer. The car that causes the collision in the earlier scene has a license plate beginning with EX, which is what the car we see in the back here has. The hubcaps/rims, style of the car, and proximity to the explosion make it a good match for the other damaged car we saw in Cardiff.

The car doesn’t necessarily look bright orange in either scene, but that doesn’t mean much because of the darkness and then the warm light of the explosion itself.

This location is definitely a match for Coedarhydyglyn, which makes it part of episode 1.

The one other thing I want to point out here is that both cars are clearly stationary during the explosion, which makes me think the explosion isn’t caused by the collision (like you often see in over-the-top action movies). It seems more like the collision happens, both vehicles stop, maybe they get out of their cars and by chance that saves them from a bomb that had been put in the grey car, or maybe the orange car uses the collision to stop the grey one so that they can blow it up somehow. The collision is still clearly connected, as it’s the same two vehicles, but I just wouldn’t assume that it’s the cause of the explosion–that seems likely to be something more sinister.





Filming location: 221B set

Characters: Mrs Hudson, Mycroft

Costumes: Mrs Hudson - dark collared jacket, dark round earrings; Mycroft - white shirt, black jacket

Episode: 2?



This would have to either be 221A or 221B, as Mrs Hudson says “Get out of my house,” in this scene. After lightening it a bit, I’m pretty certain that the background here is the red wallpaper and the mirror above the mantle in 221B:

Mrs Hudson’s costume looks like it could be a match for the one she’s wearing in the scenes on North Gower Street:

That makes me think this is possibly episode 2, but she could certainly wear that jacket and those earrings in other episodes as well.





Filming location: 221B set

Characters: John

Costumes: Black Haversack coat, dark shirt

Episode: ?



There isn’t much to go on with this one. Lightening the picture reveals that it’s probably the Haversack–again the collar looks right–and that the shirt is probably black or another dark color:

We know that John showed up for one bit of filming in the house in Miskin wearing the Haversack and a black shirt, so perhaps this is the same costume, putting this as part of episode 2. That’s a tenuous connection at best though.





Filming location: ?

Characters: Sherlock

Costumes: Something dark, no facial hair

Episode: ?



Who the hell knows? Presumably not episode 2, judging by the lack of scruff.





Filming location: Margam Abbey Ruins, Margam Country Park?

Characters: Mary?

Costumes: Black jacket?

Episode: 1?



Based on the darkness and the rain and the person using a torch, I would assume that this is the same story location, character, costume, and episode as the earlier scenes in the trailer from the ruins.

However, that doesn’t necessarily mean it was filmed in the same location. I couldn’t find any mention of a door anywhere associated with the ruins. It could perhaps be on the actual Abbey itself, but I couldn’t find any mentions or pictures of a door like this there either, which makes me think this is instead a set they built to mimic the look of the ruins. And I think there are definitely some clues that point to it being a set.

To the left of the door, you can see where it says CCXXI, which Arwel gave us a picture of a week after the filming we knew happened at the Abbey. You can also see where it says GWJ underneath the Y in no entry, which is one of Arwel’s signature things that he puts in when he can (they’re his son’s initials). I doubt they would let him deface a door actually at the Abbey or the ruins, so at the very least they brought in the door themselves. I also doubt that they’d just happen to have the Roman numerals for 221 carved into the frame there, too, so then they must have put up that frame themselves. I think these things point much more toward Arwel having built an entire set to go with this door, rather than them dragging all that out and setting it up at the actual ruins.

Also, he pretty much would have had to build his own set for this because the ruins where they filmed Mary wandering are just that–ruined. There definitely doesn’t appear to be anywhere that could be closed off by a door because the other side would just be missing some walls or have a big open archway or something. There aren’t rooms there to need a door. So either they would have had to put up some walls at the ruins to enclose a space for this door to lead to (because they’re obviously not gonna show you this door and then just not open it, so there has to be something behind it) in addition to setting up this door and frame and trying to make all of that look like it’s legitimately part of the ruins, or much more likely, they built the set for this scene entirely themselves, which could be what Rachel was so impressed with when she said Arwel built something that blew her away. Essentially, I think they used the real ruins for the wider shots of Mary wandering around that we see earlier in the trailer, and then when she gets to this, this is all a set built in a studio somewhere.

One final thought: this could be related to what Arwel directed. He posted about that the same day that he posted the picture of the CCXXI. That doesn’t necessarily mean they’re related, but they could be.





Filming location: Dunraven Bay, Southerndown

Characters: Moriarty, bodyguard, armed men, balding man (I don’t know what else to call that guy–he’s the one standing in front of the armed men, and in the pics from filming at the beach, he’s clearly balding, so balding man it is)

Costumes: Moriarty - dark suit; bodyguard - dark suit, white shirt, ear piece; armed men - dark pea coats, black trousers, white shirts, dark ties, dark grey knit caps; balding man - dark suit, white shirt, dark tie

Episode: 3



We saw video of all this being filmed on the beach at Dunraven Bay. Moriarty approaches with two bodyguards and talks to the balding man.





Filming location: Senedd?

Characters: Mycroft

Costumes: White shirt, dark suit, navy/purple tie with knot pattern, gold tie bar, blue floral pocket square

Episode: 1?



This isn’t a costume that we’ve seen elsewhere yet, so that isn’t much help.

In the background behind Mycroft are windows, beyond which there are some stairs. @cupidford and @hotsmugstache and I were all discussing that it might be in the Senedd as we’ve definitely seen Mycroft in front of windows at that location before (in the “you know what happened to the other one” scene in HLV), and the general coloring is also similar here. Cupid brought up the picture Rachel posted of Arwel in the Senedd during episode 1 filming, and it seems like a potential match:

You can see the handrail on the stairs outside the windows is the right style and about the right height. The balusters–out of focus as they are in the Mycroft picture–look to be the right, too. Even the seams between the windows look right. The only thing you don’t really see in the Mycroft scene are the dots across the windows, but maybe the angle is just wrong. Either way, this seems to be the best match, which would make this scene likely part of episode 1 then. We know that Ben was spotted on the day they filmed here, and based on my speculation above, Lindsay Duncan, who plays Lady Smallwood, was probably here that day as well.

ETA: The promo pictures show Mycroft in this same suit and tie with Sherlock at the Senedd.





Filming location: Riverside House, London

Characters: Nurses

Costumes: White nurse uniforms, face masks, hats

Episode: 2



Everything about this pretty much is a match for what we saw at Riverside House. Setlockers in London reported seeing them film this exact bit with the nurses entering the room in a line. Other people present in this location should include Culverton Smith, the lady in red (though in a different costume), all the other people seen sitting around the table in Mount Stuart Square, and most likely Sherlock, too (despite Sue saying Ben wasn’t there).





Filming location: ?

Characters: Sherlock

Costumes: Belstaff, navy shirt, facial hair

Episode: 2



This is quite obviously connected to the earlier morgue scene, and everything from there still applies here.





Filming location: Mycroft’s office set

Characters: Mycroft, Sherlock

Costumes: Mycroft - Dark grey suit, white shirt, blue tie with an “I” pattern; Sherlock - Belstaff, white shirt, no facial hair

Episode: 3?



This is definitely connected with the scene earlier in the trailer in Mycroft’s office, as he’s wearing the same costume here, but that still doesn’t give us anything to place what episode this might be in. If I had to flatout guess, I’d say episode 1 based on the dialogue, but I don’t have anything to really back that up.

ETA: Like I stated in the connecting scene above, Mycroft’s costume here (and Sherlock’s) is a match for scenes in the second trailer that are definitely from ep 3, so I’m fairly certain that’s what episode this is.









Wow, okay, that was a lot. I’m sure that I’ve missed some things here, so if you see connections that I haven’t made, catch a mistake, want clarification, have a question, etc. please feel free to drop me an ask or a reply. I’ll also add updates/make corrections to the post over time if needed.





Hope this helps, friends! xx