After commercials, we find the surgical team frantically trying to find the source of the leak. Finally, Kellerman discovers that "the connector's cracked." Maybe one of the fifty anvils that have been raining down in the OR fell on it. "This is not supposed to happen!" Kellerman snorts in disbelief. Where has he been for the last thirteen minutes? They manage to get the bleeding under control.

Downstairs, paramedics rush in with the newest contender for this year's Darwin Award. He's been scraped off the pavement following a motorcycle accident, and the genius wasn't wearing a helmet. Dalgety and Thor get in on the action, checking for vitals and giving chest compressions and whatever else it is that trauma specialists do. Dalgety asks if Thor is okay. Thor sweats and grits, "Week-old Kung Pao chicken." Dalgety orders Thor to stop the chest compressions, and checks the monitor. The guy flatlines. Dalgety calls for epi and atrophine. Thor announces the guy's pupils are fixed and dilated. If the flatlining monitor isn't enough to make it obvious, the announcement that the guy's skull is in pieces seems to be. Dalgety reluctantly shakes his head. "Looks like Elvis has left the building," Thor says. Dalgety calls the time of death. A young doctor asks about trying something else. "Check the pupils. At best, you bring back...a turrrnip," Dalgety says. He tells the nurse to let him know when the guy's wife gets there. Thor, raising a Maalox cocktail, asks, "Anyone care to argue against a mandatory helmet law?" Apparently, no one does.

Yang rushes into radiology, asking, "You paged me?" The radiologist indicates an X-ray and says, "Good news -- chest X-ray's clear. Doesn't have pneumonia." Yang tries not to faint and asks what he means. He points to the X-ray and repeats, "It's clear." "Oh, my god," Yang mutters.

Cut to Mrs. Lin standing outside her husband's room, peering helplessly through the glass wall as a team of doctors works frantically on her husband. Yang races in to announce that Lin doesn't have pneumonia. Posner wonders what tipped her off. Yang says that his chest X-ray is clear, and mutters a new diagnosis involving embolism. No one's listening. Posner's already come to that conclusion and is barking at the nurses to get Lin up to ICU pronto. Yang moves to follow the gurney, but Posner snags her elbow. "Didn't you tell me earlier that there was a lower lobe infiltrate?" he demands. Yang says that's what the radiologist told her. "You never actually saw the films?" Posner asks, stunned. Yang stammers, "Not 'til five minutes ago." Posner bites hard on whatever it is he wants to say, glares, and storms out. Mrs. Lin is still standing outside the glass wall, looking small and sad. Yang gets to reevaluate her career choice for the fifth time in as many days.