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.

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

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

I.R. starts his own pig farm, covering the whole town with an awful stench.

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.

I.R. falls in love with a flower he has grown.

Two dudes take a group of beavers hostage and Weasel must save them.

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.

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

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