While attending a prison rodeo with the family, Marge is struck by the painting talents of a sensitive prisoner named Jack. Later, she decides to teach an art class at the prison and eventually helps Jack get parole. With Jack released in her custody, Marge sets him up with a job painting a "Puma Pride" mural at Springfield Elementary School. Jack angers Principal Skinner by painting a shocking Heavy Metal-style mural which he is forced to paint over. When the new mural mysteriously catches on fire, all fingers point to the newly-released prisoner. Marge and Jack have a heart-to-heart and she tries, one last time, to help him.