Cartman, Kyle, Stan and Kenny go camping and hunting with Stan's Uncle Jimbo and his buddy Ned. Stan ends up unable to kill any of the animals, but Kenny has no problem and Jimbo gives him more attention then Stan, which makes Stan unhappy. Meanwhile, a nearby volcano erupts and unless something's done, it'll destroy South Park.
"Volcano" contains the following:
- Big Damn Heroes: Scuzzlebutt appears at the end to save the town.
- Big "NO!": Patrick Duffy when Scuzzlebutt is killed.
- Corruption of a Minor: Jimbo not only gives the boys high-power rifles for hunting, he also gives them beer (because, after all, what's hunting without it?). He also teaches them illegal hunting tactics, including catching fish with explosives.
- Early Installment Weirdness: Randy being so stoic, when it turns out a volcano is about to erupt, he just sips his coffee. If this were a latter-day episode, he'd be freaking out like crazy. Also, this episode doesn't establish that Randy is Stan's father ("An Elephant Makes Love to a Pig" would).
- Epic Fail: The "duck and cover" method of avoiding lava does not work after all, as three hapless men find out the hard way.
- Horrible Camping Trip: Although Jimbo, Ned, and the boys make the best of it, even when their car was accidentally blown up.
- Jerkass: Mayor McDaniels, who uses the attention the town is getting and the fact that the boys are stuck on the mountain for her own benefit and doesn't really care about what happens to them.
- Real After All: Scuzzlebutt is dismissed as a lame campfire story until he appears at the end.
- Real Life Writes the Plot: Jimbo and Ned's excuse of "They're coming right for us!" is inspired by an incident in Colorado in which a man shot three Rocky Mountain black bears (a protected species) down from a tree. His excuse was "They were coming right for us!"
- Skewed Priorities: When Stan and Cartman aim guns at each other, Jimbo stops them because "That's dangerous! You're gonna spill your beers!"
- Sting: When Randy realises a volcano is about to errupt, and when he announces this to the mayor. A longer, more overblown sting is used when Randy shows the mayor how much the town is doomed.
- Take That: When the other kids don't find Scuzzlebutt having Patrick Duffy for a leg scary, Cartman retorts, "Haven't you seen Step by Step?"
- Too Dumb to Live: As mentioned above, three men take Officer Barbrady's obviously ridiculous PSA styled "Duck and Cover" lava safety video seriously and do just that when lava floods towards them...they get cooked, obviously.
- Tuckerization: Randy is named after Trey Paker's dad Randy Parker who is also a geologist.
- Well Done Stanley: Stan quickly gets jealous once Jimbo starts giving Kenny more attention.
- What the Hell, Hero?: Stan gets this after killing Scuzzlebutt since it saved them.