When we come back from commercial, Wilson is admiring a man's colon (no surprise there, really) on the operating table. Suddenly, House appears on the monitor, thereby compromising both Wilson's patient, by taking away the image of the surgery, and Marina, by wasting precious time hooking the camera up to the OR feed. But it looks cool, so it's worth it. He asks Wilson for advice on why his patient's heart stopped. Wilson says that human error during the angiogram is the only thing he can think of, but House refuses to accept this. Frustrated, Wilson turns to the monitor and yells that House doesn't want to blame Foreman and risk having him leave. House responds to this by making fun of Wilson for yelling at a monitor. Meanwhile, no one else in the OR seems to think what's going on is at all unusual. Maybe House does this during all of Wilson's operations and this is just the first time we've gotten to see it. Wilson tells House to leave him alone and talk to his team. House says that they're too busy doing CPR. Wilson says that House shouldn't have fired Chase, then. "Change is fun, huh?" he chides. Yeah, I'll bet Marina is having a blast.
Back in the angiogram room, people are taking shifts doing marathon CPR on Marina. Cameron and a sweaty and exhausted Foreman wonder what to do next. No one can reach House on the phone, and Evil Nurse Brenda isn't around to put Marina out of her misery with a well-placed karate chop.
Meanwhile, Esteban wants to know why his wife isn't out of the procedure yet. It's been two hours (!!!).
And Cuddy is leading a group of medical students around PPTH when House calls out from the second floor balcony to ask the students why his patient's heart stopped during a routine angiogram. He'll promises an A to whoever gets the answer. Cuddy's weak enough to actually deliver on that promise, too. The first student suggests human error, and House shuts her down embarrassingly. Another suggests Marfan syndrome, but House says that the structural abnormalities associated with that would show up on an X-ray. Also, the patient would be like seven feet tall. He gives the guy a C for trying, though. The last student confidently suggests Botox injections, and House just as confidently gives her an F. But she continues that if the Botox injection had live botulism in it, her diagnosis would fit. The girl in front of her hurriedly takes notes, most likely including, "Copy off of her paper during next exam." House awards the student a B+, but he says her diagnosis won't work for his patient since a "boating accident" forced her to miss her last Botox appointment. Meanwhile, Stacy Frozenface may want to watch out, hmm? "Send me your résumé," House tells the student. Could she be Chase's replacement? I hope not; she's an awful lot like Cameron, and we already have one too many of her as it is. After that ultimately pointless exercise, Foreman comes running up and tells House that they need to put Marina on a bypass. Cuddy's super ears pick this up all the way on the first floor, and she can't believe they've been doing CPR on this poor woman for three hours without a bypass. She orders House to put Marina on it.