It's all-out war between BJ, McKay and Rutherford T. Grant who frames BJ's female truckers for bank robbery and plans to leave the country with the money. 

When a valuable painting's stolen trom BJ's office, an inept police detective proves to be of no help, so the trucker must crack a ring of female bodybuilders and nail a crooked cop.

Suffering from amnesia, BJ (Greg Evigan) is easy prey for Grant (Murray Hamilton), who intends to frame the trucker in a drug bust.

Sabotage is suspected in accidents involving stuntmen on a movie set.

BJ's truckers are kidnapped to Mexico, where they are forced to harvest marijuana.