The boys' mothers force their children to hang out with Kenny so they can get chickenpox. Meanwhile, Kyle's mom tries to patch up the long-broken relationship between her husband and Kenny's dad.
The town bans fireworks and must come up with an alternative for their Fourth of July celebration. Meanwhile, Mr. Garrison loses Mr. Hat to Brett Favre and Cartman struggles with swimming lessons.
In this clip show episode, Ms. Crabtree becomes a famous stand-up comedian while the South Park kids reminisce on all their adventures while stuck on a bus on the edge of a cliff.