At the hospital, Mark enters a trauma room as Dr. Dave accompanies a patient out. Carter comes in and, to Mark's back, snaps, "What." Mark offers the witty rejoinder, "Huh?" and Carter reminds Mark that he wanted to see Carter. Mark tells Carter that his naltrexone level was non-detectable. Carter says he thought it was just a drug screen, and Mark reminds Carter that taking naltrexone is one of the terms of his contract. Carter calmly says that his prescription ran out, and that he hasn't had a chance to refill it. Mark raises his voice a little to repeat that Carter knows he's supposed to take it. Getting even calmer in the face of Mark's agitation, Carter evenly replies, "And I'm taking it. I don't need it, but I'm taking it." Mark looks down and passive-aggressively chuckles a bit. "What?" Carter asks, and Mark hissyfits, "You're not the only one with something at stake here, Carter! We put ourselves on the line to give you a fresh start! In any other circumstance, you would either be dead or in jail." Carter takes a step back the better to let Mark have it: "'Fresh start,' huh? You really think this has been a fresh start? I think that I've done absolutely everything that you've asked of me, and I think I've done it without complaint. I think that I've obeyed all these arbitrary and arcane rules and regulations about what patients I can treat and what patients I can't, and when I can treat them, and when I can't." The Strings of Imminent Trauma thrum on the soundtrack as Mark looks vaguely nauseous. Carter's on a roll: "I think I've peed into cups! I think you've taken my blood, and I think at some point, it's going to have to be enough. I think at some point, you're actually going to have to trust me!" Mark's face is crumpled in on itself, and he falls to the floor, taking a small tray of instruments with him. On the floor, he shakes and seizes. Carter and Chuny administer ativan. I yell at the TV, "Swallow your tongue! Swallow your tongue!"