It's time to restock the secret Krabby Patty ingredient, and it is SpongeBob's duty to make sure the ingredient is delivered safely to the Krusty Krab. But when SpongeBob gets the delivery, he discovers that the secret ingredient has been stolen! SpongeBob has to get to the bottom of this case, or it could be the end of the Krabby Patty. Plankton has a customer who loves his chum and eats at the Chum Bucket every day – and no one is more surprised than Plankton. Could this mean competition for the Krusty Krab?