It is mass chaos at the Krusty Krab when Plankton, Mr. Krabs’ business rival, tries to steal the Krabby Patty formula for his own restaurant, the Chum Bucket. At night, Plankton attempts to make friends with SpongeBob by asking him for a Krabby Patty, but he loudly and boldly refuses and runs back home. Later that night, Plankton enters SpongeBob’s head through a pore and makes his way to SpongeBob’s brain. He attaches a mind control device to the brain and bends SpongeBob to his will, forcing him to walk to the Krusty Krab, get a Krabby Patty, and bring it to the Chum Bucket. SpongeBob feels sorry for letting down the Krabby Patty, and his appetizing description of the sandwich causes a hungry Plankton to leap out of SpongeBob’s head, but he lands in his own analyzer, which reveals the ingredients of whatever is put into it, and becomes trapped in a computer. This is Plankton’s first appearance.