Lord Peel captures the Monkeys and intends to make them pay for turning him from a mild-mannered alien who happens to look a lot like a banana, into an embittered super villain obsessed with revenge.

After challenging the undefeated Space Gorillas to a match on the popular game show "Galactic Laser Blast!", Gus decides the only way the Monkeys can win is to bring in a ringer—YAY-OK.

GASI has a new recruit: Monkevil, former super villain, and Gus and Wally's long standing crush. Though she excels during training, YAY-OK suspects that she has returned to her life of crime.

Nefarious's latest evil invention gives him control over Wally's tail.

Gus and Wally try to get to a Christmas party before all there cake is eaten.

Looking to expand his social circle, Wally reaches out to Spacebook-and instantly has hundreds of friends.

YAY-OK is put in charge by Dr. Chimpsky to decide whether Gus or Wally should be in charge of their money, after they blow all of GASI's budget on a shopping spree.

YAY-OK meets his creator who thinks he is no good anymore and hurts his feelings.

Gus and Wally win a trip to "Banana Fun Land", which turns out to be a ruse by Lord Peel in order to trap them on a deserted planet. However, when Banana-Man (Lord Peel) gets stuck in there as well, he starts bounding with the monkeys.

Nefarious, disguised as Inky, manages to get inside the rocket ship, but ends up in the middle of a competition of affection between Gus and Wally.

When Wally discovers that he is able to coax music from a rock, a jealous Gus tries to prove that said rock is alive and making the music on its own.

Lord Peel finds a way to ruin Halloween.

Gus and Wally have a new and very important mission: build a protective orb around an extremely unstable quasar. After they made the orb as best as possible, they just realize the door knob is missing and leaving them stuck inside the sphere as well.

Gus stretches the truth about his heroic missions and wins several awards, sparking interest from Wally.

There is a villain that the monkeys don't know a lot about and in order to they must get new security photos.

The ship flies through a dimensional hoop and picks up an extra Gus, leaving Wally as the odd monkey out.

The monkeys keep on pretending to be hurt, so they can get more treats from their mom.

Nefarious invites the Rocket Monkeys to a slumber party so that he can steal their rocket ship, but struggles to keep the two monkeys asleep.

When Gus stiffs a waiter on his tip, the server seeks revenge with a cursed bucket of fortune clams.

Yay-OK needs a break from all the crazy monkey shenanigans, so he activates a copy of himself to cover for him while he goes to a spa. However, when the monkeys destroy the clone, they think that the real Yay-OK is a ghost seeking revenge.