Doctors Weasel and I.R. shrink themselves in order to perform an operation, which is to repair a crack in The Red Guy’s butt cheek.

Weasel and I.R. are vikings, who are ready, willing and able to pillage and plunder anything in sight. However, is it not too late to join The Red Guy in being a viking cheerleader?

Weasel and I.R. battle each other as gladiators in the Roman times.

Weasel and I.R. are worker bees, and our red-butt baboon wants to do a honey dance like all the other bees, but it soon results in further problems.

Weasel and I.R. (as ghosts) are called to haunt a famed Hollywood starlette (The Red Guy) out of her home. And as always, things don’t go to plan.

Weasel and I.R. are adopted as dogs by a young boy.

A narrator tells the story about the travelling country-singing duo of Weasel and Baboon.

Weasel and I.R. are vampires looking for some fun. What’s more, they get on well with the villagers. Later on the Red Guy (who’s a vampire hunter) tries to put steaks through their hearts.

Weasel attends I.R.’s wedding, only to find that the bride hasn’t shown up yet.

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

Weasel and I.R. end up stranded on an island made entirely of confectioneries (i.e., chocolate, ice cream, cupcakes, etc.).

It’s the Egyptian times, and Weasel and I.R. are both asp exterminators, attempting to save the queen Cleopantless (The Red Guy) from this infestation.

In an attempt to prove his claim that he’s a better musician than Weasel, I.R. gatecrashes a live event, armed with a theremin.

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

Weasel studies one of the natural wonders of the world, a gigantic hole. Unfortunately, I.R. has come over as well, along with his obsession to fill up every single hole in the world.

I.R. manages to get himself into a live ping-pong game against Weasel, but he gets disqualified because he used an egg as a ball.

Weasel and Baboon are cavemen living back in the prehistoric times, while Weasel tries to invent new products to create the future.

Weasel earns a major role for a film that I.R. was after.

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

Weasel and Baboon are on an expedition to capture a wild, dim-witted savage named Fred. When they manage to capture him, Weasel, however, cannot understand his unusual language.

Weasel and I.R. are in search of a legend known as Big Butt, which later happens to be The Red Guy.

With help from the Red Guy, Cow manages to fish Weasel out of her TV and into her home, leaving it up to I.R. to find him.

I.R. gets a bike for Christmas. Learning of his inexperience, Weasel tries to help him.

Back in the medieval times, Weasel is a dentist with wizardry powers with Baboon as his envious nurse.