Everyone in the ER is on call after a devastating accident involving a police car and a school bus. Carol (Julianna Margulies) may lose her job thanks to the accusations of a drugged-up patient whom she found sprawled in the bathroom in a pool of blood. In trying to stem another patient's bleeding, Jeanie (Gloria Reuben) may have exposed him to AIDs. Greene's (Anthony Edwards) bedside manner deteriorates as his domestic problems increase. And Al (Michael Beach) is fired after revealing that he is HIV-positive. ~ Hal Erickson, Rovi