Aliens land in South Park and kidnap Kyle's little brother.

Cartman wins the school's essay contest, and a celebrity comes to town.

The boys' hunting trip is threatened by activity from a nearby volcano and a mysterious creature.

Stan's dog explores his sexuality.

A genetic engineering experiment unleashes Stan's mutant twin.

With the help of Stan's grandfather, the kids summon the Grim Reaper.

Trick or treat in South Park is interrupted by an outbreak of "Pink Eye."

Government authorities mistake Cartman for a starving African child and send him to Ethiopia.

When Kyle's musical holiday pal Mr. Hankey shows up, it makes for a memorable Christmas in South Park.

Jesus and Satan fight a battle for spiritual domination, which conflicts with Cartman's birthday party.

Damien turns Kenny into a duck-billed platypus.

Satan throws the fight and goes back to hell a wealthy devil.

After the weigh in, the townspeople change their bets to Satan winning.

Damien is the spawn of the Devil, and the new kid in class.

The boys seek help from Jesus.

Damien summons his dad to duke it out with Jesus.

The whole Jesus vs. Satan battle is ruining Cartman's birthday plans

Damien and Mr. Mackey discuss how to make friends.

Cartman gets revenge on Damien.