The 100’s midseason finale airs this Wednesday and it’s a big one. Last week’s episode ended with Clarke (Eliza Taylor) getting closer than ever to a truce with the Grounders against their common enemies, but the Grounder commander, Lexa (Alycia Debnam Carey) said there was one notable stipulation – Finn (Thomas McDonell) had to be given to the Grounders to pay for his crimes.

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Eliza Taylor as Clarke and Thomas McDonell as Finn in The 100.

Lindsey Morgan and Eliza Taylor in The 100.

I spoke to Eliza Taylor about what to expect in the finale, how Clarke responds to this offer and more.In addition, IGN has an exclusive clip from this week’s The 100 below, as Clarke arrives back at camp to pass on the grim news – resulting in some understandably tense reactions.I think when the ultimatum is given she is just in total shock. She goes from being extremely relieved to blood running cold. I don’t think she knows what she’s going to do but her immediate thought is to get to him and protect him. She’s very stubborn about not giving him up.There’s got to be a part of her that is thinking like the leader she’s becoming, which is that if we do this then we have our truce. That thought has crossed her mind but being the sort of caring person that she is, especially as someone who loves Finn, she still can’t quite come to terms with the idea.I think, at this point, obviously she was extremely shocked by his behavior and what he did to the Grounders, but she has come to a peace with it - especially given what she’s seen in him and how much pain he’s in. So I think she’s just trying to convince him now that he’s saveable and that he’s not a monster.I think there’s a real mutual respect. Because the Commander, assuming she’s been around since Season 1, the amount that we’ve survived, and from what she’s heard of Clarke, I think she’s a little impressed by her determination. But it still doesn’t make up for all the blood that’s been spilled. I think there’s definitely a lot of tension still to work out.I would just say that this episode is not going to disappoint and there’s going to be not one but two or three big twists that people really won’t be expecting.

The 100 midseason finale airs Wednesday, December 17th at 9:00pm ET/PT on the CW.Eric Goldman is Executive Editor of IGN TV. You can follow him on Twitter at @EricIGN , IGN at ericgoldman-ign and Facebook at Facebook.com/TheEricGoldman