Mikey and Donnie try to get a Jupiter Jim moon buggy vehicle from a repo yard, where they run afoul of its owner Repo Mantis. In exchange for the prop vehicle, Mikey and Donnie are hired as repo men and are sent to repossess an RV on Long Island. However, the deal deteriorates when they meet the RV's possessor, a kind mutant named Todd Capybara, and his puppies.