Watch SpongeBob SquarePants, Mermaidman & Barnacleboy: Defenders of the Deep

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Spongebob Squarepants is a huge fan of the underwater superheroes Mermaidman and Barnacleboy. Not only do the heroes have their own fictional TV show, but they live in bikini bottom with SpongeBob. Relive some of the best adventures with SpongeBob and the heroes. This includes battles against villains like the Dirty Bubble and the production of a Mermaidman and Barnacleboy movie.

SpongeBob SquarePants, Mermaidman & Barnacleboy: Defenders of the Deep is a series that is currently running and has 1 seasons (10 episodes). The series first aired on August 21, 1999.

SpongeBob SquarePants, Mermaidman & Barnacleboy: Defenders of the Deep is available for streaming on the website, both individual episodes and full seasons. You can also watch SpongeBob SquarePants, Mermaidman & Barnacleboy: Defenders of the Deep on demand atiTunes online.

Nickelodeon
1 Season, 10 Episodes
August 21, 1999
Animation & Cartoon
Ad
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SpongeBob SquarePants, Mermaidman & Barnacleboy: Defenders of the Deep Full Episode Guide

  • Mermaid Man and Barnacle Boy let SpongeBob and Patrick in on their secret, heroic origins!

  • SpongeBob and Patrick get carried away when they fill in for Mermaid Man and Barnacle Boy.

  • The new Mermaid Man and Barnacle Boy trading cards are on sale, and SpongeBob is determined to get the super special rare talking card, no matter how many packs of cards he needs to buy to find it.

  • Plankton has brainwashed Mermaid Man and Barnacle Boy! With the dynamic duo under Plankton's control, he orders them to wreak havoc on the Krusty Krab. It's up to SpongeBob SquarePants and his trusty spatula to save the day!

  • Spongebob gets a hold of Mermaid Man's utility belt and accidentally shrinks all of Bikini Bottom.

  • When Mermaid Man and Barnacle Boy go away for the weekend, they ask SpongeBob and Pat to house sit for them. Inside the house, SpongeBob and Pat discover the evil super villain, Man-Ray frozen in a tank.

  • SpongeBob wins the big prize from his favorite TV show, "The Adventures of Mermaid Man and Barnacle Boy" - The Conch Signal! Now he can summon the semi-retired super heroes whenever there's an emergency.

  • Watching their favorite show, reruns of the TV duo superhero show Mermaid Man and Barnacle Boy, SpongeBob and Patrick hear that their beloved heroes are living in a nearby retirement home.