I.R. is jealous of I.M. Weasel (I.M. being the first on Mars, Jupiter and Uranus). But then NASA tells I.R. that he can become the first on the sun, and I.R. readily accepts the job. This creates quite the challenge for I.M...

I.R. is in charge on making a bridge from the U.S. to France, but when Weasel takes over, I.R. vows for revenge.

Weasel is going to face a human in a ping-pong duel. A jealous I.R. tells the human that he's won a trip, so I.R. can duel Weasel himself. But as I.R realizes that he doesn't stand a chance, he resorts to cheating.

While Weasel is trying to cure an athlete's face patient, I.R. Baboon creates a cure which goes wrong and spreads it over the town.

An accident causes Weasel and I.R. to drop their brains.These get swapped while being unconscious.

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

I.R. has his own ""Deep Sea Tour"" company, which takes people to the bottom of the sea.

It's Christmas, and I.R.'s family pays a visit. But when they go to Weasel's house instead, I.R. vows to ruin Christmas.

In ancient Egipt, Weasel and I.R. must save the queen from a huge group of snakes.

I.R. will do anything to get Weasel's role on his last movie.

Weasel and I.R. create their forms of life.

I.R. hurts himself while walking up to Weasel's house! Weasel discovers that I.R. has broken his phantom foot! When I.R. goes to see Dr Clearbottom on phantom limbs, this doc's services are at a very high price! Weasel later reveals that it was Clearbottom who dug the hole which injured I.R.'s phantom foot so he can take all his money!

Weasel investigates the strange habits of I.R., who keeps changing his habitat due to unknown reasons.

It's discovered that I.R. is the king of the kingdom of Yurp, so Weasel must turn him into a gentleman.

I.R. destroys the Law of Gravity (literally), which causes all lawyers to float (since they are the only ones that understand law).

I.R. finds an abandoned baby and adopts him as his son.

Cow selfishly wants Weasel for herself so she fishes him out of the tv with a pie! But I.R. becomes very lonely without Weasel.

While working on a supermarket, Weasel meets a smart banana with the ability of speaking.

Weasel and I.R. travel to the Moon to create a new form of living, through oxygen, cities and plants.

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.

The Red Guy tells us a story about a small group of Baboon Fairies and how they all work together as presidents, with I.R. Baboon as their slave.

Weasel and I.R. are called in as replacement kids after a couple's real children go away to camp.

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

Weasel, I.R. and The Red Guy are believed to be the last beings on Earth, until they discover that everybodys been watching their show... where it turns out that Baboon is really the star!

Weasel must relocate the people who suffer from the cronic crybaby syndrome, not knowing that they are the main source of water on the planet.