“Grey’s Anatomy” only has two weeks to go until Season 12 is over, but rest assured, the drama is coming.

In this week’s episode, viewers will get deeper insight into Alex (Justin Chambers) and Jo’s (Camilla Luddington) relationship. But in Shondaland, when answers come, so do more questions.

“It’s been a really long time coming,” Luddington teases about tonight’s episode, which has a big scene between longtime couple Alex and Jo. “I think it’s time that you’ll see Jo finally answering the questions and then getting more clarity into where their relationship stands.”

Alex and Jo aren’t the only couple to have major moments in tonight’s episode. Owen (Kevin McKidd) and Amelia (Caterina Scorsone) take their relationship to the next level, while Callie (Sara Ramirez) and Arizona (Jessica Capshaw) continue to struggle with their current custody arrangement, after Arizona was awarded with full custody of their daughter, leaving Callie devastated.

“As the story was going, I actually thought that maybe Callie was going to get her. I thought maybe that lawyer was doing a better job at jabbing at Arizona, so I was completely shocked that it was Arizona,” Luddington tells Variety, reacting to last week’s shocker.

“That’s why the table reads are so fun is because we don’t know things,” Luddington adds, reminiscing on the season. “From April dealing with a new pregnancy to when Ben gave the patient a C-section, those moments are so shocking to us and everything always seems high risk. We’ve been joking to the writers, ‘Can we please have a beach episode where we drink piña coladas?’ Every season they put us through the wringer. We just end the season exhausted, but so excited. That’s the thrill of being part of the show. I don’t think we’ll ever get a beach episode!”

As for tonight’s episode and next week’s finale, Luddington warns viewers of major twists and turns.

“There are so many things going on. What I love about the last two episodes is that if you’re a specific fan of one couple or one person, there’s something for you. Everyone across the boards has something dramatic going on. There are moments where you get completely blindsided.”

With a laugh, she adds, “As many bottles of wine or tequila or whatever you drink and snack on to watch ‘Grey’s,’ stock up.”

“Grey’s Anatomy” airs Thursdays at 8 p.m. on ABC.