Terrance and Phillip travel to Iraq to rescue Terrance's daughter, Sally. When they get back, they discover that Canada has been conquered by Saddam Hussein, so it's up to our two favorite Canadians to save the day.

As Dr. Mephesto is about to reveal the identity of Cartman's father, he is shot and is rushed to the hospital. Chef and the boys wait by his side until he wakes up. Meanwhile, a blizzard hits South Park and they become trapped inside the hospital, and Mrs. Cartman wonders if it's too late to have an abortion.

Ike's bris is approaching, and the boys misunderstand exactly what happens during this ceremony. Kyle tries to save his baby brother by sending him away. Meanwhile, Mr. Mackey is fired from his job and begins to question everything he's ever believed.

When the townspeople discover that Officer Barbrady can't read, they send him back to school. A mysterious pervert is molesting the chickens in South Park, and Officer Barbrady is put on the case. With a little help from the boys, Barbrady must catch the Chickenlover and learn about the joys of reading.

When Kyle sees that the school nurse has a dead fetus attached to her head, his mom tries to educate the boys about this strange condition, and then sets out to inform the whole town. Meanwhile, the boys compete in the International Dodge Ball League, and they discover that Pip has quite the dodgeball arm if they can make him angry enough.

When the boys interview Jimbo and Ned for a school project on Vietnam and present what they learn to their class, Mr. Garrison tells them all their information is false, and accuses the boys of making it up. The boys want revenge on Jimbo and Ned for telling them lies, so they send in a fake videotape to Jimbo and Ned's local TV show.

During a snowy bus ride, Mrs. Crabtree loses control of the bus and it ends up on the edge of a cliff. When she leaves in search of help, the children are still trapped on the bus, and they remember some of their past adventures. Mr. Mackey tries to deal with the parents who are upset that their kids are missing.

When summer comes around the boys are excited about leaving school and buying some fireworks. Their fun ends when they discover that fireworks have been banned, so Ned and Jimbo try to save Independence Day by smuggling in illegal fireworks from Mexico. Meanwhile, Mr. Garrison can't find Mr. Hat, and Cartman takes swimming lessons.

When a film festival comes to South Park and crowds of people flood the town, it's more than the local sewer system can handle. It's too much for fragile Mr. Hankey, so Kyle begs the film festival people to leave. Meanwhile, Stan and Wendy watch some of the films together, and Chef whips up a few batches of his Salty Chocolate Balls.

Kenny comes down with the chickenpox, so the boys' parents send them to his house to catch the disease while they are still young. Stan and Cartman soon become sick, but Kyle remains healthy and is furious when he learns what his parents did. He and the boys plan their revenge. Meanwhile, Sheila tries to rekindle the friendship between Kyle's dad and Kenny's dad.

The boys go on a class trip to the planetarium. Afterward, they all want to go back, though they can't remember why. Stan, Kyle, and Kenny investigate and realize that the planetarium has been brainwashing people. Meanwhile Cartman tries his best to get in a Cheesy Poof commercial.

Stan wants to build a clubhouse so he can play Truth or Dare with Wendy. Randy is all for it, and Kyle reluctantly helps out too. Feeling snubbed, Cartman and Kenny build their own clubhouse. Meanwhile, Stan's parents are having marital problems.

South Park is holding its annual Cow Days festival. The local cows become fascinated by a giant cow clock, and form a cult around it. Meanwhile the boys are determined to win a pair of Terrance and Phillip dolls at the carnival, even if it means taking advantage of Cartman's temporary personality change.

Chef finds himself in a legal battle over a song he wrote, and tries to earn money by prostituting himself. The boys want to help Chef by gathering his famous musician friends for a charity concert.

Stan is sure that the pet fish his Aunt Flo gives him is evil. When dead bodies start to appear in Stan's room, his mother suspects him of the crimes, and not the fish. Meanwhile, Cartman is acting unusually friendly and kind, which makes the other boys instantly suspicious.

Stan, Kyle, and Kenny go with Cartman to visit his grandmother for Christmas. While they are there, Cartman's Uncle Howard breaks out of jail with his cellmate, Charlie Manson, and the two of them hide from the police in the basement.

The kids must give a presentation on current events to prove that Mr. Garrison has actually taught them something. The boys are assigned to work with Tweek, who is sure that gnomes are stealing his underpants. Meanwhile, Tweek's dad uses their project to promote his own personal cause.

Kyle and Stan find an ice man frozen in a cave, and argue over their discovery. Dr. Mephesto determines the ice man is not as ancient as they'd hoped, but builds him a habitat to simulate his original time period. They realize he'll just never fit into their era, so they try to find the perfect place for him.