After winning the heavyweight boxing championship and single-handedly winning the war in Vietnam for America, Sylvester Stallone moves on to a real challenge -- arm wrestling -- in this action drama with a family undercurrent. Lincoln Hawk (Stallone) is a long-haul truck driver who years ago abandoned his wife Christina (Susan Blakely) and their son Michael (David Mendenhall). Hawk comes to see the error of his ways and wants to reconcile with his loved ones, only to discover that Christina is in the hospital suffering through the last stages of a terminal illness. Her wealthy and powerful father, Jason Cutler (Robert Loggia), has come to hate Hawk for the way he left his daughter to fend for herself, and he wants full custody of the boy upon her death. But Hawk is desperate to mend his relationship with Michael. He kidnaps the boy, and as Jason's hired goons give chase, Hawk points his truck toward the one place where he can win the money and recognition that will earn his son's respect -- a wrist-wrestling championship in Las Vegas. Actor Sylvester Stallone also co-wrote the screenplay.