When Marge won't take Bart to the movies because she's helping Lisa with her science project, Bart watches a movie at 11pm in the night. Marge interrupts him, and Bart stays in the treehouse, angry at her because he thinks he's grown up enough to watch it himself. The next morning, Bart has turned into an "old dude", and when he tries to find Homer at the Power Plant, he gets promoted to an executive position at the Plant. Bart, now Buck Samson, has jobs to do, like a normal executive, but he has to climb stairs every 108 mins to stop the towers exploding. The day wears on, and just as Bart is fed up with being a grown-up, he awakes from his dream. Marge climbs up and gives him his breakfast, then tells him she's decided that he's old enough to go to bed a little later. Bart tells Marge he wants to stay a kid forever, and she tells him that that only happens in comic books.