What do you on chapter four of the SpongeBob SquarePants movie?

It seems like you're asking about Chapter 4 of the SpongeBob SquarePants movie. However, the SpongeBob SquarePants movie (2004) doesn't have chapters. It's a single, continuous movie.

Perhaps you are thinking of something else, or maybe you are referring to a different SpongeBob SquarePants media. Could you please clarify what you are referring to?