In search of fun in the lab, Peri and Entrèe find one of the doctor's journals, which supposedly tells what the purpose of Peri is. The friends go to visit Mister Smarty Smarts hoping he can read Peri's purpose to them, but it turns out he can't read. He lies and says Peri was created to be the best friend of Entrèe.

Peri and Entrèe are looking for someone to join them in a game of Bucket-Stick-Fruit-Ball, but nobody wants to play. The terrifying Princess Pony Ape Hands is the only one who wants to play. However, she plays too rough so Peri and Entrèe quickly try to ditch her. Princess throws a major temper tantrum and decides to smash the old nuclear reactor.

When Peri finds out he has small cratures living in his fur, he wants to keep them so they can have a little society there, but when he begins to stink, everybody wants to clean him.

Mister Smarty Smarts, tired of the incompetence and ineptitude of the inhabitants of the island, creates a device to make everyone smarter. His utopia is soon ruined when everyone's intelligence goes way past his. After being treated like an idiot, Smarts decides to make everyone unintelligent again.

After escaping Princess Pony's tickle attack, Peri and Entrèe find an old golf cart. Entrèe repairs the vehicle, replacing the engine with the brain of an evil robot. After naming it Gordon, Peri and Entrèe travel around the island with their new car. After a few days of driving, Peri and Entrèe don't want to drive again for a while. After they abandon Gordon in the jungle, he decides to cause trouble.

After Peri and Entrèe accidentally shoot themselves into the sky with one of Fuzzy's transportations, Entrèe uses his chicken wings to stop him and Peri falling to their death. However, he crashes through a building and loses control. After they crash through a makeup store, a clothesline and a wig shop (completely changing their appearance) they land in the tree house of Princess Pony, who believes they are magical fairies. After learning she'll give them everything they ask for in return for dances or fairy tales, Entrèe decides to use Princess to get everything he wants.

Peri and Entrèe find a mustachioed Entrèe-like being frozen in a block of ice. The two friends thaw him out and learn that his name is Apéritif. Apéritif introduces himself to Entrèe's "delicious" friends, who all admire him more than Entrèe.

Entrèe is tired of walking, working and moving of any kind and wishes he could just be lazy for the rest of his life. While walking through the jungle he meets Slouch Potato a lazy mutant who teaches Entrèe how to get a chump to do everything for him. After annoying Peri with his laziness, Entrèe is left lying in the middle of town where he starts to grow roots that stick him to the ground.

Peri and Entrèe want to thank Joe for everything he's done for them and the island. After asking Compuhorse what they could do to make him happy, they decide to give him Peri's arms for a day. Joe is pleased but grows too fond of Peri's arms and doesn't want to give them back.

Peri and Entrèe want to know why Patricia is so upset and become "The Smile Squad", trying to cheer her up in outlandish and fruitless ways. When that fails and they make her even more upset, they decide to use a brainscan machine to look into her mind and see what she's thinking. They find out that Patricia feels lonely because she's the only none-mutant on the island. After some thinking, Peri comes up with the perfect plan to make her feel like one of them.

Mister Smarty Smarts decides to use the power of Peri and Entrèe to take control of the island.

Bowled Over - Peri wants to know what he's good at. After running from Two-Legs Joe, Peri and Entrèe find a secret room for bowling, Peri realizes that he was born to bowl. However, in trying to prove his bowling ball can be used for other activities, Peri is frustrated by the results and throws the ball into the volcano. After this, an alien civilization, the Pinnians decide to take over the island and treat the mutants like slaves. By realising these aliens have a kinship with bowling, Peri decides to confront them doing what he does best.