Steve gets competitive and turns on his best friend during the father-son events at Possum Lake, the home of the legendary fish-monster called Old Ulysses. Roger pretends to be the local tour guide and becomes more infamous than the fish.
After a fight with his dad, Steve goes to an all-girls boarding school. Roger realizes that Steve has become stuck in his own zany spinoff sitcom. Meanwhile, Stan is annoyed by Steve's British replacement.