Now that Zola is back, the Grey-Shepherds are quite the happy family and Mere in on Cloud Nine watching her learn to walk, and bringing her in to the gallery to see daddy operate. Bailey is also happy with Ben, but Ben wants to move their relationship forward to the point of cohabitation. Bailey isn't ready for this, so she grabs Meredith to help on a surgery -- and by "help" she means to have her ask a lot of questions and keep the subject on anything but Bailey possibly moving in with Ben. Of course this only works for a little while because Ben sees Meredith's happiness as the perfect example of what he wants for them, and finally after possibly losing a sponge in a patient (don't worry, it's found) she admits that she's scared that if she moves forward something horrible will happen again. Ben manages to convince her how much he loves her and Tuck and she finally agrees to leave a toothbrush at his place and go from there.
Teddy, April and Cristina are together for a couple of surgeries but it's only Teddy and April who are working -- In the two weeks since Henry's death, Teddy has taken to having Cristina stand at attention and recite every single step of his surgery from the start until time of death. It's all rather morbid and terrible, and April is absolutely horrified to be a witness to it all. Cristina seems to be the only one willing to go along with it, probably because she has had her own experience trying to crawl out of a black hole of despair. After hearing the story one too many times, and listening to Teddy grill Cristina on every move she made, April finally snaps and yells at Teddy that Henry is gone and she can't do this anymore but Teddy basically tells her to shut up and leave if she can't handle it. She stays, and so she sees when Teddy finally has a breakthrough and seems to accept what happened; Cristina apologizes but Teddy breaks down and tells her in no uncertain terms that it's not her fault at all, and that she was brilliant and did everything Teddy would have done, and that Henry just died.
The big Surgery O'The Week is the separation of conjoined twin girls, and this takes the skills of most of the doctors in the hospital. Arizona is in charge of the whole thing and winds up so high-strung that she drives everyone up the wall bossing them around and freaking out about every little detail. She manages to get under Alex's skin something fierce, which Richard notices and then uses to his advantage to take over Alex's role in the surgery. Twice. Alex is pissed that Richard took advantage instead of teaching him but Richard points out that he just taught him never to give up a chance to take part in a once-in-a-lifetime surgery. Lexie is the main contact for the very, very young parents of the girls and has her hands full keeping them updated as the hours tick by and various complications crop up. In one way, thought, it's a good thing because it keeps her out of the OR where one of the main subjects of conversation seems to be the utter awesomeness of Mark's girlfriend. Finally, despite the complications and Arizona's freakouts, the surgery is a success and we can revel in having more characters finish up the episode happy rather than unhappy, which is a refreshing change of pace.
Meredith and Derek have fallen right back into parenting and Derek is now Everydad, filming every moment he can of Zola's waking hours, in hopes of getting her first step on tape. Mere's VO O'the Week is about the pressure to perform, like when you were a kid with a starring role in the school play. Zola's probably not feeling any pressure since she is a baby, but she's also resolutely not taking that first step as long as Derek has the camera on. He and Meredith are beside themselves with joy at having her; it's really sweet. I also imagine it's not hard at all to act with this baby and to tell her she's the cutest baby in the world because I practically coo that at my television screen every week.
Mere then tells us that back in olden times we used to call the operating room an "operating theater" and explains how it still feels like one: As the sun rises in Seattle we see the overhead OR lights turn on and the support staff get the room ready for the big show, putting on their costumes and masks. Classical music plays as she continues that everything has to be rehearsed and choreographed which is what almost every doctor on the staff is doing right now as they gather in the now-ready OR. As Owen talks to them all about being prepared, we see that everyone has on a red or a green headband which designate which surgical team they are on. Arizona is heading up the Red Team while Derek has the Green Team and Owen explains that they have given a couple all of their pro bono dollars and resources, so he wants the docs giving everything they've got in this surgery. You know, as opposed to all the other days when he's fine with them just phoning it in. He explains that Arizona has been caring for these patients since the day they were born and then pulls back a sheet to reveal two baby dolls stuck together at their backs, one with a little red headband and one with a little green headband; these are the practice dummies that represent the conjoined twins that the docs are separating today.
Bailey is one of the only doctors not on the twin case and when she walks in to her significantly less crowded OR, she's not pleased to see that Ben is working with her. He switched off of the conjoined twin case so that he could talk to her, and after a lot of back and forth where she tells him she's not talking about "it," we find out that "it" is moving in together. If you are close enough to want to move in together, can't the conversation wait a day if one of you has the chance to work on a once-in-a-lifetime surgery, as everyone is so quick to remind us this is? But we needed a subplot, so here we are. After he points out many of the benefits of cohabitation ranging from romantic ones to the practicality of having one electric bill, she points out that they have been together for two weeks. He insists that it's been two weeks and nine months that they had before the "pause." He wants to pick right up where they left off, but Bailey seems not to share this idea, and she leaves the room.