Luther wipes out while trying to break Zeke's record of most water jugs jumped in a row, and must have knee surgery. After the surgery, Luther develops super-human strength in his knee and sets out to break more of Zeke's records. In his attempt to jump the biggest sink hole, Luther's new robo-leg malfunctions and accidentally knocks Zeke into the hole. Luther must decide between saving his new knee or his best friend.