While romancing Palmer, a much younger schoolteacher, plastic surgeon Danny Maccabee enlists his loyal assistant Katherine to pretend to be his soon to be ex-wife, in order to cover up a careless lie. When more lies backfire, Katherine's kids become involved, and everyone heads off for a weekend in Hawaii that will change all their lives.

ER explores the inner workings of an urban teaching hospital and the critical issues faced by the dedicated physicians and staff of its overburdened emergency room.