When Pratt is witnessed bringing a gun into the emergency room, Carter feels compelled to defend him. However, Pratt's erratic behavior makes Carter reconsider. Meanwhile, Weaver hopes to keep her pregnancy a secret, but physical complications might compromise her plans. Lewis warily watches self-destructive patient Chip Mealy, who admits to molesting young boys. Romano warns guilt-stricken Kovac not to admit to a grieving mother that his miscalculation caused her son's death. Chen treats high school students who overdosed on Ritalin. And Gallant confronts the scheming young wife, Koko, of an aged, dying man.
Alex Chester, Artur Cybulski, Barbara Eve Harris, Denyn Pysz, Jennifer Nico, Jill C. Klein, Joshua A. Jackson, Liz Torres, Michael Durrell, Michael Ealy, Miguel Caballero, Patrick Cranshaw, Rob Moore, Shoshannah Stern, Sofia Milos, Sondra Currie, Wendy Haines, Zoe Cotton