Henry Oldfield and his brother Angus help their father raise sheep. A tasteless prank involving Henry being attacked by his older brother who's wearing the skin of Henry's beloved pet sheep Dudley, followed by news of their father's death due to an accident, results in Henry developing severe ovinophobia, fear of sheep. This causes him to leave New Zealand and not return until his brother asks to buy Henry's share of the farm, as Angus plans to use modern bioengineering methods to create better sheep. As Henry is shown about the farm, members of an Animal Wrongs Group, Grant and Experience, steal a sample from Angus's laboratory and accidentally release a bioengineered lamb - which then proceeds to infect the rest of the flock, thus creating hordes of bloodthirsty sheep.
Not to be confused with the Chris Farley/David Spade film.
This film provides examples of:
- Attack of the Killer Whatever: Killer sheep. Really.
- Animal Wrongs Group: WECA. Although it sounds like Grant is the reason things keep going wrong.
- Baa-Bomb: Near the end of the movie, the infected sheep have been safely corraled, but there's not enough medicine to cure them all. Multiple sheep farting makes Henry realize they have an alternative way of ridding themselves of the sheep...
- Bestiality Is Depraved: Angus is revealed to have had carnal relations with the sheep on the farm. Bonus points for it being incestuous.Henry: What are you doing?!Angus: You wouldn't understand.Henry: I understand you've got a pretty fucked up idea of animal husbandry!
Henry: Fuck the sheep!Tucker: No time for that mate!
- Referenced earlier in a joke between Henry and Tucker.
- Black Comedy Rape: While Henry is trying to cross the field of killer sheep disguised by a wool seat cover, one of the rams takes quite a bit of interest in his crawling form...
- Black Sheep: At the beginning of the film, it's Angus, who apparently can't participate in the herding of the sheep due to a bad leg. Later, Henry's ovinophobia makes him the effective black sheep of the family due to being unable to help with the family business.
- Boom, Headshot!: There's a lot of these.
- Comically Missing the Point:Henry: You've been bitten.Angus: It's nothing, just some hippy.Henry: You'll become one of them!Angus: (horrified) A hippy?!
- Granola Girl: Experience.
- Groin Attack: Angus gets the mother of these thanks to a sheep.
- Innocently Insensitive: After narrowly escaping a truck that plunges off a cliff, Experience remarks that she wouldn't like to fall from such a height. Henry then points out they're standing at the place where his father fell to his death in an unfortunate accident years before.
- Mass "Oh, Crap!": Angus and his potential investors when they see a massive herd of carnivorous sheep heading straight for them.
- Mood Whiplash: The DVD menu keeps switching between a footage of a sheep melancholically chewing its cud alternated with clips of rabid sheep attacking.
- Morally Ambiguous Doctorate: Astrid Rush, the scientist helping Angus develop his new sheep, is definitely this.
- Noodle Incident: WEKA appears to have had several of these:Experience: This isn't going to be like the salmon farm again, is it Grant?Grant: Hey, those fish died free!
Experience: Who'd hire her after that thing with the leeches?
- Also referenced about Dr. Astrid Rush:
- Ninja Pirate Zombie Robot: Mutant Zombie Were-sheep
- Not with the Safety on, You Won't: Experience threatens Henry and Tucker with a rifle before they point out that the safety is on. Having no idea how to fix it, they do it for her, and naturally don't give it back.
- Our Zombies Are Different: They're sheep! That turn humans into were-sheep!
- Raising the Steaks: The killer sheep are essentially zombie (Type P) sheep who can turn humans into were-sheep.
- Reality Ensues: Despite being horrific monsters, the were-sheep are still sheep, and thus easily kept in check by a sheepdog.
- Reusable Lighter Toss: Methane and flame don't mix well.
- Sheep in Wolf's Clothing: Angus and Henry find that their infection lets them walk among the killer sheep unharmed.
- Shout-Out: WETA did the special effects for the film. WEKA is the name of the Animal Wrongs Group in the film. Even better is that both are named after actual New Zealand animals. note
- Smoking Hot Sex: Angus locks himself, and the "prototype" of a new breed of sheep, in his study to protect them from man-eating sheep. When we next see him, he's smoking a cigarette in his underwear.