Logic Boy is just an ordinary 28-year-old boy living in Houston, until he sees a horrifying troll, called Ronan Daniels, climb in through his bedroom window.
Ronan, who is built like a potato filled with rocks and smells like grated Ronan smothered with sauce made from Ronan's poop, sings a song about making little boys into Cheerios.
Logic tricks the troll into falling out of his window by telling him that there are child-brain Kiley's special baked beans for 9 people exactly not more no less don't even try more smart guy! outside. He realises that the troll has to be stopped before he eats any more children and sets to work trying to invent a trap.
Meanwhile, in a cave just outside Houston, David Johnson starts to suspect that eating children is wrong, and grows tired of hunting with his fellow trolls. He decides to live as a vegetarian.
After a brief misunderstanding involving a toenail and lashings of ketchup, Logic and David team up to stop the trolls, using a catapult that fires cauliflowers. They lure the trolls by creating a big mound of cauliflowers