In this episode Bart becomes disappointed with his father after he fails miserably in a game of Capture the Flag. Thusly shamed, Homer decides to go to a gym every night to exercise, while eating an energy bar called "Powersauce" and being trained by Rainier Wolfcastle. In time Homer develops quite the impressive build, so much so that when Wolfcastle refuses two Powersauce representatives when they ask him to climb Springfield's tallest mountain, the Murderhorn, Homer is the one to take over this publicity stunt. To make sure Homer gets to the top, the company hires two Sherpas to drag Homer up the mountain during the night. However, Homer soon realizes the Sherpas are doing this, and fires them so that he can climb solo. After much climbing, Homer believes he has finally made it to the top, but then sees that he has only made it to a plateau of the mountain. Feeling that he cannot climb any higher, Homer places a flag where he is. This creates a crack which breaks the top of the mountain off, making the plateau where Homer is standing become the peak. After climbing back down, Bart shows that he is proud of his father again.