Plankton turns Mermaid Man and Barnacle Boy into his minions with his mind controlling device. Plankton controls the heroes and orders them to encourage the customers of the Krusty Krab to eat at the Chum Bucket. By feeding them Krabby Patties, SpongeBob turns Mermaid Man and Barnacle Boy to normal and they all go to the Krusty Krab, leaving the Chum Bucket empty.
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