The wife of a Marine serving in Vietnam, Sally Hyde (Jane Fonda) decides to volunteer at a regional veterans hospital to occupy her period. There she meets Luke Martin (Jon Voight), a defeated wheelchair-bound vet that is becoming disillusioned with the war. Sally and Luke develop a friendship that soon turns into a romance, but if her partner, Bob (Bruce Dern), yields unexpectedly, she has to decide between staying with him pursuing her brand new love.