Season 1

Sheen launches himself into outer space and crash lands on the planet Zeenu. The Emperor and his daughter Oom takes an instant liking to Sheen but the Supreme Royal Adviser Dorkus wants to get rid of him after he destroys his house and usurps his influence over the Emperor. In the meantime Sheen meets Mr. Nesmith, a lost space monkey from Earth and a native Zeenuian Sheen takes a liking to, Aseefa.

The Emperor hires a tutor for Sheen to prepare him for a visit from Boh-Rok the Destroyer.

Sheen moves across the street from Dorkus.

When Aseefa's pet Chocktow goes missing, Sheen volunteers himself, Nesmith and Doppy to help her find him.

Princess Oom forces Sheen to face her ex-boyfriend in a battle for her affections, much to the reluctance of Sheen.

After Sheen entertains the Emperor with his amazing joint cracking ability, he convinces the Emperor to record his “amazing” achievements. In a fit of jealousy, Dorkus enlists the help of the Gronze brothers who accepts Sheen's challenge of being the best.

When Sheen grows tired of Zeenuian food, he searches out a lost crumb of tortilla from his spaceship. He plants it in the ground in hopes of growing some Earth food, but thanks to Dorkus, things go awry.

When Sheen experiences a Zeenu holiday, he regales the Zeenuians of tales of Earth holidays and convinces them to celebrate Thanksgetting which entails Sheen receiving gifts.

After Princess Oom is scared by Aseefa's warrior face, she convinces the Emperor to lock up all the citizens with “scary” faces, but Sheen must step in.

After the Emperor refuses to give out an acting award because Zeenuians acting is terrible, Sheen brags about how good of a tree actor he is. Dorkus overhears Sheen and creates a play where the final act will eliminate Sheen permanently.

After Sheen sees the Emperor's money suit, he decides he must make some cash to obtain his own but realizes it comes at a high cost.

Sheen realizes he no longer needs Ultra Lord.

After the Emperor's pet, Beebaw, goes missing and Nesmith is accused, Sheen convinces the Emperor to hold a trial.

While pet-sitting, Sheen accidentally gets Aseefa's pet Chocktow caught by Animal Control and has to rescue him before she returns.

In an attempt to stop Princess Oom from liking and licking him, Sheen tries to get her back together with her ex-boyfriend.

The Emperor's Royal Ball of Compliments quickly turns into a Hall of Insults as Sheen and his friends are plagued by a flock of bird-like, rowdy, mocking blurgs.

Sheen puts on a magic show that actually makes people disappear.

Sheen helps Doppy's parents rid their house of an unwanted guest.

Sheen has to rescue Nesmith from a mythical white-haired creature, the Boopenfoofer.

Sheen's starts a new art movement only to have it take over his life.

Sheen has to "go" but he doesn't want Aseefa to know.

Sheen enters a flying bug saucer race.

To avoid Oom's advances, Sheen fakes an illness called "dance fever" that actually starts spreading to other Zeenuians.

Sheen vows to never bathe again and accidentally attracts a horde of destructive, filth-loving beasts.

Sheen has to use his matchless wit to rid Zeenu and save his friends from a carnivorous, pretentious plant called the Dentamental.

Sheen uses his master detective skills to find Nesmith's missing hat.

Sheen gets stuck to Oom's tongue and must find a way to free himself.

Sheen must train the Emperor's Guard to prepare for emergence of a legendary beast, the Londar.

Accidentally chained to each other, Sheen and Dorkus are trapped underground and must work together to find a way out.

Sheen teaches Zeenu his version of baseball.

Doppy's parents fear their son is becoming too courageous when he and Sheen form the Monster-Fighting Combat Strike Force.

Chaos ensues when the Emperor leaves town and puts Sheen in charge of the kingdom.

Sheen becomes a doctor and sets up a clinic in Zeenu.

Sheen blames Doppy's new pet for breaking his figurine collection.

Sheen starts an Earth food restaurant.

Sheen helps Aseefa get through her one night of Tahlak Pow where she turns into a vicious, rampaging beast.

Sheen tries to keep Zeenu safe from Baby Arms Banarog, a desperado with evil breath.

Sheen accidentally gives Princess Oom the most important part of his rocket ship and has to find a way to get it back.

Seeing an opportunity to destroy Sheen, Dorkus volunteers to train him for the "Manhood Trial by Fire."

When Nesmith loses his ability to speak, Sheen must save the planet using the awesome power of ventriloquism.

Sheen helps Aseefa get her Roove back.

In order to help Aseefa, Sheen purchases a black market mustache and must deal with the consequences when it gets out of control.

Sheen eats a berry that makes him huge and hazardous.

Sheen has to figure out a way to lead the Celebration of Legs Parade despite the fact that he's turning into an eel.

Sheen and Nesmith rescue Doppy from a group of gloop thieves, the Gashlubbs.

To improve Zeenu's government, Sheen introduces the concept of Clown College.

Zeenu is attacked a swarm of wedgie-giving barbarians and it's up to Sheen to stop them.

After accidentally waking the Empress up during her year-long beauty sleep, Sheen must help her fall back asleep before she makes everyone's lives miserable.

In order to keep his new baby Drakbog, Sheen has to civilize it using parenting tips from Dorkus.

Thinking Nesmith is ill, Sheen, Doppy and Aseefa go on a harrowing quest to find the only thing that can cure him: a banana.