My Life as a Teenage Robot - Season 3 Episode 23 Indes-Tuck-tible
Overview: After almost getting hit by a truck, Tuck becomes hyper-paranoid about everything, until Jenny shows himself in the future, perfectly healthy. Tuck realizes that he's not going to die until he lives a full life, and decides to become a daredevil, seeking fame and glory. Unfortunately for Jenny, this means a lot of stopping what she's doing and saving him from his crazy stunts.