A fitting for new space-suits reveals that Gus's tail has grown just enough to classify him as a rare long-tailed monkey, which attracts Gamester X, an alien determined to add Gus to his collection.

An unfortunate haircutting accident reveals the crown-shaped royal birthmark of Eld under Wally's fur and his royal destiny as the rescuer of the frozen Princess Von Monkey.

A batch of toxic bananas has infiltrated the market, zombifying any primate who takes a bite, including Wally. Gus must travel to the bananas' source planet and find a cure for the zombie germ.

When the trash-talking Space Gorillas hijack Gus's mission, the 'Rilla-Monkey rivalry returns with a vengeance. To redeem themselves, the Rocket Monkeys take on their most dangerous mission yet.

Gus and Wally are charged with herding 2000 Zortoids through space for their annual feeding at Gluttonia, but Wally must face a test of his monkey ethics when he befriends one of the herd.

Gus makes a monster movie and posts it on Space Book (a parody of Facebook). The whole galaxy except YAY-OK and the monkeys think that YAY-OK has a disease because it was viral.

Gus and Wally lose their fun privileges.

Gus and Wally use all of Inky's ink so they must get more

Gus and Wally compete to become a sidekick.

Thinking that Gus has caught the fatal and fictional disease "Monkey-Itis", Wally tries to make his brother's last days as comfortable as possible, no matter how much he hurts him in the process.

Lord Peel has a new plan: get the monkeys to hate bananas. While he does succeed at first, things take a horrible turn when Gus and Wally are determined to eradicate every single banana in the galaxy.

Gus and Wally find out that their old college roommate Cornelius J. Simian is now a scientist and take him for a day of partying to revive the good ol' days. However, without Simian's surveillance, his galaxy-destroying weapon "Blackhole-Inator" is activated.

When Gamester X discovers that Yay-Ok was the star of the superhero show Thunderbot, he captures the robot in order to make a series finale, as the original show ended on a cliffhanger.

The monkeys are excited to see the premiere of the new Deep Space Dave movie, but their plans are thwarted when Chimpsky gives them an incredibly boring mission: repeatedly push a button to avoid freeing a giant monster.