024b - Imitation Krabs
A robotic fish controlled by Plankton and designed to look like a salesman walks into the Krusty Krab. He tells SpongeBob that he will win $1,000,000 if he tells him the Krabby Patty secret formula. SpongeBob then says that it can only be discussed with Mr. Krabs in private. Enraged, Plankton bursts out from the robot and threatens violence against SpongeBob if he doesn't reveal the secret formula, only to be tossed back to the Chum Bucket by Mr. Krabs.
Later, Plankton creates a robotic version of Mr. Krabs in order to make SpongeBob reveal the formula to him. He tells Squidward he can have the whole day off to get rid of him, and tries to make SpongeBob, who is working in the supply room, tell him the secret formula. However, the real Mr. Krabs keeps on coming into the room they are in, so he has to hide and he emerges again when the real Mr. Krabs leaves. Eventually, Plankton throws a penny out the window and the real Mr. Krabs runs after it, thus completely distracting him.
Afterwards, Plankton learns that for the secret recipe to be discussed, he must first do a ridiculously long and complicated ceremony that takes around 6.5 hours to accomplish.
Six and half hours later, SpongeBob is about to give him a bottle with the recipe inside when the real Mr. Krabs comes into the kitchen right after the penny Plankton threw earlier. SpongeBob gives them both a quiz about the Krusty Krab, threatening to blast one of them with tartar sauce. The imitation Krab gets all the answers to the quiz correctly (obviously via its technology) and Mr. Krabs somehow gets them all wrong. SpongeBob squirts Mr. Krabs with tartar sauce and rolls him out the door.
SpongeBob presumes that the robotic Mr. Krabs is the real one, and gives him a penny that he "dropped." The penny goes into its coin-operated self-destruct mechanism, blowing Plankton into the sky right after he makes a frantic run for the Chum Bucket with the secret formula bottle still in his possession. With the secret formula bottle rolling down torwards SpongeBob, he then realizes that it was Plankton and that he threw out the real Mr. Krabs. He saves the real Mr. Krabs, who is being attacked by a live-action hand with a plastic fork, and rolls him back into the Krusty Krab. SpongeBob apologizes to the real Mr. Krabs , and Mr. Krabs forgives him, but tells SpongeBob that the penny is coming out of his paycheck, with both of them laughing at the end, with SpongeBob asking if it's true.