Set in an understaffed, busy emergency room, this medical drama follows the lives and work of ER Residency Director Dr Leanne Royer (Marcia Gay Harden) and the residents she trains at Angels Memorial Hospital. In this episode, the first of series two, a fresh round of residents has arrived. Among the new arrivals is army-trained Colonel Ethan Willis (Rob Lowe), who is flown to a shark attack in Malibu with Dr Mike Leighton (Tommy Dewey). During the tumultuous ride, Leighton falls 20 feet from the helicopter. Meanwhile, Dr Will Campbell (Boris Kodjoe) is promoted to Director of the ER, causing a rift between him and Royer.