When a California fruit farmer with a taste for hot rods brings Steve a 1954 GMC COE truck he decides to take it over the top. With a 1200 horsepower engine mounted behind the cab in the flatbed the crew begin their love affair with the baddest truck ever made. Meanwhile Steve's buddy J.R. returns with a broken trailer he needs repaired. Steve gives the job to Twiggy and Barber, but first they will have to wrangle the cows that have escaped and are now running free in the shop yard.