In the CT room, Smelly Mel is scanned, and the results are horrifying. Apparently, she has every kind of organ failure going on. Bailey orders, "Karev, page Shepherd, Burke, Montgomery-Shepherd, the Chief, and every surgeon with an available hand and get an OR open -- GO!" Bailey tries to talk to Melly, but she's not responding and there's that ominous beeping of unhealthy stuff happening.
George, looking stunned, runs into Callie, who demands to know where Izzie got to for Marshall's surgery. George just looks at her and walks into Noah's room. The rest of the Waltons are there as well. Momma babbles about how much she likes Callie because of the pain shot she gave Noah. George carefully tells them that Melly is in trouble. "When your daughter came into the OR, her body was over-pumping her bloodstream with adrenaline, which kept her conscious and alert and pain-free. During the CT scan, she was lying still for an extended period of time, so her body relaxed and the adrenaline stopped flowing, which allowed her to succumb to the full extent of her injuries, which are...they're catastrophic," George explains. Damn. Damn.
In the OR, cutting, slicing, and suction happens. Alex tries to get a look at the proceedings until Addison orders him to sit by the fetal monitor and keep an eye on the baby's heartbeat. Alex snarks something unpleasant, but no one listens to him. Lots of scary-ass tools come out. The Chief calls Addison over.
George explains to the shell-shocked Waltons that they are going to do everything they can to save their daughter.Addison determines that the baby is safe, and tells the other surgeons to go about trying to save Mel. All sorts of bad stuff goes on and they can't stop the bleeding. All the attendings agree that all they can do is damage control at this point. The Chief reminds them that they know the rules. They have to work as quickly as possible to manage the crisis without worrying about repairs. "Just get it done. Once she reaches The Triangle, we stop. No exceptions," Chief finishes. Alex wants to know what The Triangle is. "Blood stops clotting, her muscles produce acid, and her organs get cold," Cristina head-of-the-classes. "You're talking about the triangle of death," Alex realizes.
Meredith sits with a distraught Marshall, who tells her he had just finished a twelve-hour surgery on top of a thirty-hour day. A twelve-hour surgery in which he saved someone's life. On the way home, he closed his eyes for a second in the car. "Meredith," Marshall asks, "does this mean...are we actually saying that, today, this morning, because I stayed in the OR to save a life, I may have killed a pregnant woman?" Meredith is saved from answering by a CT tech, who has her CT room ready for Marshall. Meredith asks her to give her a moment. CT tech starts to bitch about being backed up, but Meredith is having none of it and shuts Square-Glasses Face up. Unfortunately, when Meredith turns back around, Marshall is gone.