Based on the true story of The Wright Brothers, The Red Guy narrates a documentary about The Wright Bros. and the Rong Bros. (Weasel and I.R.), competing to see who could invent the first plane.

Weasel attempts to take I.R. out to a baseball game.

Weasel and I.R. concoct life, but the red-butt baboon soon becomes jealous when Weasel’s world evolves faster than his.

I.R. creates a disease which transforms people into amoebas, leaving it up to Weasel to clean this mess up.

Weasel tries to help provide a good source for people with a severe crying syndrome.

Weasel is famous cowboy working in a rodeo in which Baboon is a clown. Cow and Chicken’s teacher and her husband appear in this episode. Cow also makes a guest appearance.

Weasel works at a hotel as the manager, whereas I.R. is his incompetent bellhop. However, Weasel needs to rely on I.R.’s help when an acclaimed cannibal actor (The Red Guy) wants to eat him for dinner.

Weasel and I.R. are sent back to repeat the 4th Grade, in which they would go to the same school as Cow and Chicken.

I.R. Baboon is jealous over his neighbor, Weasel, because he has a better life, job, and family (married to a beautiful Hispanic woman with half-weasel children) than him. However, when he’s invited over to Weasel’s house for a barbecue, I.R. tries to impress him with his own “family” (his pretend marriage to a pantsless woman, […]

Based on the story of Frankenstein, Weasel is a mad scientist, whereas I.R. is his assistant.

Based on Batman, I.R. Baboon is the hero known as Baboon Man, whereas Weasel is his sidekick, Weasel Boy.

After tripping over an invisible pot-hole, I.R. breaks his “phantom foot”. Ultimately, he attempts to sue Weasel over his injury.