"Believe It or Not, Joe's Walking on Air" is the third episode of the sixth season of the American animated television series Family Guy, an episode produced for season 5. It originally aired on Fox in the United States on October 7, 2007. Joe Swanson (Patrick Warburton) gets the impression that his wife Bonnie (voiced by Jennifer Tilly) is tired of being married to a disabled 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 (Seth MacFarlane) and the guys are upset at how Joe is acting and decide to teach him a lesson. In doing so, he is re-crippled, and he makes amends with his friends.