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.

Kyle's mom is ruining the Christmas play and Kyle sings the Mr. Hankey Song.

Kyle may not have Santa, but he does have Mr. Hankey.

Censorship has ruined Christmas.

The people of South Park want a holiday season that every minority and religion can enjoy.

Kyle's Dad does not approve of his believing in Mr. Hankey.

Mr. Hankey sings Kyle a Christmas song but goes limp when Mr. Broflovski walks in.

Mr. Hankey is going to go to school with Kyle to prove he's real.

Mr. Hankey won't come alive for Kyle's friends, who now think he's sicker than ever.

Cartman sings about Kyle's mom being a bitch and gets poo on his face.

Mr. Hankey jumps in Counselor Mackey's coffee mug, making things a whole lot worse for Kyle.