SpongeBob SquarePants - The Main Drain
One day in Bikini Bottom, SpongeBob wipes the grill with a sponge (made from part of his own tongue) at the Krusty Krab. He proclaims that it is freshly clean and tries to convince a customer to eat a Krabby Patty that was on the grill. When SpongeBob goes back inside to cook the patty, the customer asks Squidward why he does not want a Krabby Patty, and he replies that he has seen what SpongeBob cleans the grill with. It goes back to SpongeBob, who is on his way to the freezer for a patty when he slips on a puddle of water. Upon closer inspection, SpongeBob observes that the puddle is coming from the sink, which is clogged with water. As he is trying to figure out how to unclog the drain, Patrick comes in and slips as well. He helps SpongeBob try to pull the drain plug.
Eventually, Mr. Krabs overhears them trying to pull the drain plug and stops them before they have a chance. He tells them the story of the Main Drain. He tells them that there was a plug that two kids apparently pulled long ago that ended the world of Bikini Bottom. When they ask him where it is, he becomes nervous and tells them to go away. The two go outside and SpongeBob steps on Plankton, and then they ask him about it. He becomes nervous as well and tells them to go away. SpongeBob says that he heard it from Mr. Krabs, and Plankton claims Mr. Krabs was lying. They ask him where it is they once again do not get the answer. They turn to Old Man Jenkins, but he yields no results.
They then go on an adventure to find the plug by dragging Patrick’s house around. Just before they pull the plug, Mr. Krabs and Plankton stop them and tell the story of how they were the ones that pulled the plug when they were younger. They explain that they lied because they did not want SpongeBob and Patrick to look for it. Unfortunately, Patrick had already pulled the plug when they were telling the story and everything (including themselves and the Bikini Bottomites) is sucked into the drain.
Patrick then sits up in his bed, telling SpongeBob that everything was ”the most realistic story he has ever heard,” indicating everything that happened was only SpongeBob’s story.