The real Mermaid Man and Barnacle Boy must protect Fort Lox and its five billion Krabby Patties from the devious Kelp-Thing!
Prepare to feel my wrath, you foul villain!
Cast: Mermaid ManBarnacle BoySandy CheeksDirector: SpongeBob SquarePantsAs seen in: SpongeBob SquarePants (1999-Present)
![elderly Mermaid Man and Barnacle Boy](/img/the-real-mermaid-man-and-barnacle-boy-movie-1280w.jpg)