The Marvelous Misadventures of Flapjack (2008)

S1E32 Fish Heads

While Flapjack and Captain K'nuckles are caught littering by the Dock Hag, she assigns them to community service, requiring them to gather fish heads. Excited by the prospect of earning money, they are approached by Doctor Barber, who promises to pay them for the heads. However, the duo quickly realizes that Doctor Barber has ulterior motives for wanting the fish heads.