During a power outage at the ER, Greene (Anthony Edwards) is forced to improvise to treat an injured utilities repairman. Elsewhere, a helpful neighbor brings in an elderly couple suffering from suspicious injuries. Carol (Julianna Margulies) tries to send word to Ross about her pregnancy, despite a total shutdown of communication within the building. Romano (Paul McCrane) finds himself in the position of begging to Corday (Alex Kingston). And a rapist is on the loose somewhere in County General. ~ Hal Erickson, Rovi