Family Guy: Believe It or Not Joe's Walking on Air

Bonnie tells Joe that she is tired of being married to a handicapped person so he decides to get a leg transplant. Excited about his new ability to walk, Joe dives head first into extreme sports and begins to hang around more active friends. Meanwhile, Peter and the guys are upset at how Joe is acting and decide to teach him a lesson. In doing so, they re-cripple him and he is back to normal.