When Cartman begins to exhibit odd behavior, a counselor suggests that finding his father may solve his problems.

The future of the world is at stake after the boys unearth a prehistoric relic that spawns a monster.

Mr. Garrison takes a leave of absence to have a nose job and is replaced by Miss Ellen, a substitute who threatens Stan and Wendy's relationship.

As Cartman celebrates his birthday, Jesus Christ and Satan duke it out on a pay-per-view TV special. Meanwhile, Satan's son Damien tries to fit in with the crowd after making a violent first impression.

Because he's Jewish, Kyle is denied involvement in the Nativity play and excluded from trips to see Santa. Meanwhile, South Park residents try to plan a politically correct celebration; and Mr. Hankey visits Kyle.

After the boys contact an agency that helps starving children, Government authorities send Cartman to Ethiopia. Meanwhile, the town holds a drive for canned goods; and turkeys revolt against a genetic engineer.

A pinkeye epidemic interrupts the boys' plans to win a Halloween-costume contest; and Kenny has a run-in with a Russian space station when it falls to Earth.

The boys summon the Grim Reaper.

After a botched genetic experiment, Stan's clone is let loose in the town. Voices include Trey Parker and Matt Stone.

When his pup explores his sexuality, Stan gets so upset that he inadvertently threatens to blow the school's homecoming-game victory.

A volcanic eruption interrupts the boys' camping trip.

Cartman tries to slim down when he learns a TV talk-show host is coming to town to give him an award, but he bulks up instead. Meanwhile, Mr. Garrison hatches a plan to murder the visiting celeb.

Aliens wreak havoc in the Rockies, first by subjecting Cartman to an anal probe, and then by abducting Kyle's baby brother.