Episode Information
Episode Number 50
First Aired June 1, 2002

SpongeBob SquarePants: Mermaid Man And Barnacle Boy V (2002)
 
Guest Stars: Charles Nelson Reilly (as The Dirty Bubble) Ernest Borgnine (as Mermaid Man) Tim Conway (as Barnacle Boy/Barnacle Man) Mr. Lawrence (as Chocolate Guy) John Rhys-Davies (as ManRay)
 
Synopsis
Chocolate With Nuts: SpongeBob and Patrick decide to become rich entrepenuers by selling chocolate bars door to door. But instead of making money, they lose money.

Mermaid Man & Barnicle Boy V: After being treated too much like a child by everyone, Barnacle Boy quits being a superhero and decides to be a supervillan and joins Man Ray and The Dirty Bubble. The three form the group "EVIL", which stands for "Every Villan Is Lemons". While Patrick, SpongeBob, Sandy and Mr. Krabs become superheroes and form the group "I.J.L.S.A.", which stands for "International Justice League of Super Aquaintances" to prevent "EVIL" from commiting crimes.

You can watch SpongeBob SquarePants on Nickelodeon.