The Simpsons watch a Rainier Wolfcastle movie and later at the church picnic, the kids play "capture the flag." Homer joins Bart's team to compete with Flanders, but Homer fails miserably, because he is horribly out of shape. When this really starts bothering him, he starts jogging. He finds a gym while jogging, and Rainier Wolfcastle is there. Rainier helps him get into tremendous shape and after a few months, Homer reveals this to the family and Bart is very impressed. When the Powersauce energy bar company comes to offer Rainier a gig to climb the "Murderhorn," the tallest mountain in Springfield, he refuses, so Bart volunteers Homer for the job. Not wanting to disappoint Bart again, Homer goes for it. Homer is given Sherpas to help him, but he fires them so that he can do it alone. Even when Powersauce stops sponsoring him, Homer continues in his quest to make Bart proud of him and he reaches the top and succeeds.

To teach his son the value of a dollar, Hank makes Bobby get a job selling drinks at the racetrack, and tells Bobby to do everything his boss says. What Hank doesn't know is that Bobby's boss, Jimmy Witchard, is a complete moron who makes Bobby do humiliating and even dangerous tasks. Meanwhile, Boomhauer competes for the right to drive the pace car in the NASCAR race.

Scully fears that Mulder has gone to the other side when she sees him assisting a federal suspect escape custody. In truth he has infiltrated a terrorist group testing a deadly biological weapon that can eat through a person's flesh.