When SpongeBob tries to find out why he stepped in gum, he role-plays as a detective called, "GumShoe SquarePants."
Done in the style of the old classic black-and-white horror films, it begins when SpongeBob wondering why he's called GumShoe SquarePants, then he steps on a piece gum, thus realizing why he is called that way. He inspects it, and chews it. After that, he steps on Plankton. SpongeBob does not want to be called, “PlanktonShoe SquarePants," so he decides to get rid of Plankton, then he walks away, claiming that he has another mystery: where is he right now.