Down, Down to the Center of the Earth

Down, Down to the Center of the Earth is the third episode in The Adventures of Mermaid Man, Barnacle Boy and SpongeBob!The Adventures of Mermaid Man, Barnacle Boy and SpongeBob!

Plot
In the retirement home, Mermaid Man and Barnacle Boy are watching TV. They see the news, saying the world's deepest hole is in progress. Little did the heroes know that SpongeBob was behind them, and scared them, dropping their popcorn.

IN PROGRESS