The boys get together with Stan's Uncle Jimbo and Jimbo's war-buddy Ned for a hunting trip in the nearby mountains. After Cartman's mom makes sure her "little" boy is safe and sound (much to Cartman's dismay) the group heads off for adventure. As they drive away from the town, Jimbo explains the "finer" points of hunting.

Mr. Garrison starts the day off with a special announcement; one of South Park's own has won a national essay contest. Everyone is shocked to learn that the winner is Cartman, who doesn't even remember what he wrote about.

"Happy Birthday" to Stan's Grandpa Marsh who just turned 102. How does the wizened Mr. Marsh feel about his birthday? He sums it up in five words; "I wish I were dead" and proceeds trying to end his life enlisting Stan to do it for him. However, Stan is aware of a very important thing if he kills his grandfather, he'd be in trouble, and if he's in trouble he can't watch Terrance and Phillip.

The first Halloween episode starts off with the failure of the Mir Space Station, which crashes right on Kenny. An ambulance comes and takes his body off to the morgue. The boys start to brag about their Halloween costumes. At the morgue, a freak accident involving a bottle of Worcestershire sauce occurs, and next thing you know Kenny is a member of the undead. Kenny breaks free and wanders off into the night.

South Park Elementary is on stage rehearsing for the schools play. Kyle begins to sing a song about Mr. Hankey, the Christmas Poo. Of course, no one has any idea what the heck he's singing about. Kyle explains that Mr. Hankey comes every year to all the good boys and girls who have a lot of fiber in their diet. Everyone thinks he's insane and he gets sent to a mental institute.

The kids sing "What Would Brian Boitano Do", as featured in South Park: Bigger, Longer, & Uncut

Kenny spontaneously combusts. The mayor asks Randy Marsh to find a solution. The boys try to help Kyle's dad to get an erection. One way they think they can help is by performing the Stations of the Cross at church crucifying Cartman and waiting three days for his res-erection. Randy Marsh figures out the reason everyone is combusting is because they are withholding their farts.

The boys discover a live prehistoric Jakovasaur while camping on Stark's Pond. The government and the citizens of South Park are interested in trying to help keep this endangered species alive, until they all realize how annoying the Jakovasaurs really are. The only one who really enjoys them is Cartman. The boys try distracting him while the town tries to send the Jakovasaurs to France.

While the boys are waiting for the school bus, Cartman explains the odd nightmare he had the previous night involving alien visitors abducting him from his bed. Meanwhile Kyle and Stan try to convince Cartman that the dream was in fact a reality. - Extended Version

Cartman is jealous of the friendship that’s developed between Kyle and Tolkien and decides to do something about it.