Fonda plays Sally Hyde, a Veterans' hospital volunteer, whose husband Bob (Dern) is away fighting in Vietnam. At the hospital, she befriends Luke Martin (Voight), a paraplegic as a result of the same war. Luke's bitterness over his fate is gradually overcome by his evolving relationship with Sally. Soon the two fall deeply in love. When Bob eventually returns from overseas, he, Sally and Luke have a lot to sort through.