"Neuroleptic malignant syndrome?" Susan asks Carter, snickering. They're outside Large's trauma room, and she teases him about the orifice from which he might've yanked that one. "Photographic memory," Carter says smugly. "Oh, and I delivered a lecture on coma last week." Susan shakes her head. "Ridiculous," she says softly. Carter doesn't get what she means. "Time," Susan clarifies. "Yesterday it seems you couldn't start an IV." Carter puffs up and insists, "Oh, it was longer than yesterday," but he says it like he's trying to convince his childhood babysitter that they can have an affair and it won't be gross. "Carter?" Abby interrupts. "That kid Mooney saw my patient...What did you tell him about nitro?" Carter shrugs that he gave them the basics -- three sprays. "Three sprays, that's right, ba-bam-bam," Abby snaps. Carter is shocked that the kid administered them all at once, instead of waiting five minutes between sprays. "How's his pressure?" Carter worries. "Zero over zero. He's dead," Abby retorts. Susan slowly turns to look at Carter, whose eyes are so wide you could serve Thanksgiving dinner on them. Abby rolls her eyes. "I'm kidding. I pulled him through," she reassures him. "Keep a short leash on your students." Ha! Her joke might've been the episode's best line. Carter's so into his role as mentor that he's leaving out tiny but critical details. Carter tries to be calm about it, but he does somewhat frantically decide to go check on Mr. Stegman.

Outside, we get an aerial shot of a widening hole in the ozone layer. No, wait, sorry, that's Mark's head. He's pulling an empty gurney toward a Toyota Land Cruiser, the SUV of choice for people who need to take their fathers to the hospital. "Did you see him get hit?" he shouts to the daughter, who we'll call Dizzy because it rhymes with Lizzie, as in Grubman, but keeps me from having to use the real L.G.'s name over and over in this recap. Dizzy's dad is stretched out on the car's back seat, where Chuny hunches over him and establishes that his breathing is shallow and his pulse weak. Mark uses his name -- Alan -- to try to get him to wake up, but he won't. Chuny finds abrasions on the man's back, and Mark yells for a backboard.