A young Air Force veteran, Carrol Jo Hummer (Jan-Michael Vincent, Baby Blue Marine, TV's "Airwolf"), starts in business as the owner-operator of a thirteen-speed, seven-and-one-half-ton diesel...
A young Air Force veteran, Carrol Jo Hummer (Jan-Michael Vincent, Baby Blue Marine, TV's "Airwolf"), starts in business as the owner-operator of a thirteen-speed, seven-and-one-half-ton diesel truck, which he "dresses up" and names "The Blue Mule." With his bride, Jerri (Kay Lenz, Falling from Grace, Physical Evidence), he sets off to Tucson, Arizona, where his old friend Duane (Slim Pickens), the manager of a trucking company, gets him a job. But after Carrol Jo realizes he will be carrying...