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.

When Michelangelo and Todd Capybara spy on Meat Sweats in order to learn his most delicious recipe, the Turtle and the mutant chef become BFFs after Meat Sweats accidentally absorbs Todd's niceness. The two of them go on a look for the extremely rare lunar truffle that only grows when the Moon is in alignment with Jupiter, and face its Were-Tree guardian.

Big Mama turns New York City into her new Battle Nexus arena and The Turtles have to fight to save everyone they love.