Derek is trying out his newfangled brain surgery on a fake brain but unfortunately he keeps fake-paralyzing his fake patient. Lexie is there watching his progress on a monitor and tells him each time he kills some important motor function. Owen comes in to see how it is going and Lexie shuts off the monitor, probably so he won't see just how badly things are proceeding. Derek supposes it's time to suck it up and do the original surgery but Owen tells him to try his procedure again, and then insists that he's practicing his coaching skills. After much convincing, Lexie turns the monitor back on but Derek keeps ruining important parts of the fake brain.
Cristina appears to be doing her angioplasty in a room that has its windows open right out on one of the hallways. I mean, really? No curtain, even? It might be just roto-rootering someone's arteries but it is still a surgical procedure and I don't know that a patient needs an audience of, like, someone else's mom. Meredith runs in to let Cristina know about Zola's medical records being subpoenaed, which they think could possibly be a good sign that they might be doing it in preparation for Mere and Derek to finally get a court date. She emails Janet, despite having just told Cristina that they have been bugging her to much, and Cristina reminds her to keep the faith. Meredith complains that she can't figure out a problem in the diabetes trial, and Cristina just laments back that she used to be a real surgeon doing real surgeries. Mere gets an email back from Janet that turns out to be an out-of-office response, and that kills any possible faith-keeping she had left in her since she assumes Janet is on vacation and doesn't really care. She walks out complaining that Zola has probably forgotten her by now.