South Park: The Death of Eric Cartman / Season: 9 / Episode: 6 (2005)

The kids of South Park retaliate against Cartman by ignoring him after he eats all the skin off of the chicken Kyle, Kenny and Stan were going to eat causing Cartman to think that he has died. With the help of Butters, (who is the only one that can "see" him) Cartman tries to atone his sins on earth, for he cannot go to the afterlife without doing so.