Curly and the Cadets investigate the mysterious disappearance of the Mummus, Mutisse, and Max.
When two craters appear during a meteor shower, the Cadets decide to help them get back home. However, Esme has other plans.
When the Cadets go on a camping trip without their technology, Abby gets drawn to a video game created by Esme.
Goob and the Grumbles' landslide causes the Badanamu Express to get stuck on the tracks. While Goob and Bada fight over the Size-Reviser, Tammy grows into a giant kitten.
When the trees in Wonderwood Forest begin falling mysteriously, Curly suspects Big Boots to be behind it.
While the Cadets help lost baby birds find their mother, Mimi must protect Mumu Palace from Goob and Gronk.
Jack, Professor Pip's brother, takes the Cadets on an adventure to Ancient Ecco Pyramid to uncover a mysterious secret.
The Cadets film a cowboy movie at baby Mumus' request, but a few unexpected guests drop by.
Bebe, Mimi's cousin, joins the Cadets in their quest to collect special snow from Glacier Hills.
When the Cadets have trouble falling asleep during a camping trip, they decide to play a storytelling game.
Esme and her team capture an unsuspecting baby Rainbow Whale for their devious plan.
Olivia acquires a plant that can turn organic waste into energy seeds, but Esme decides to steal and turn it into a monster.
Esme and her team steal a crate of energy seeds from Olivia and create a Grum-Bot army.
Vulture, Esme's boss, gives her and her team the last chance to capture and defeat the Cadets.
Mommy and Daddy Penguin from the Penguin Sub go on a quest to find the Glacier Gillies and their Crystal Cavern.
The Grumble Gang abducts the members of the biggest band in Badanamu.
The Cadets, baby Mumus, and the penguins take a ride on the ocean liner, The Gigantic.
Esme rejoices when the Cadets get hooked on the app she created. However, Bada saves the day with some kung fu training from Ziggy.
When Esme threatens Goob and Gronk, they find a new way to trick Esme with the help of the Cadets.
The Grumble Gang captures Jack when he goes out exploring Ecco Mountain.
The Cadets decide to have a friendly competition to claim a prize for reaching the middle of the Insta-Maze.
While Mumu Palace hosts a team challenge for the Cadets, the Grumbles strike with a sneaky attack.
When a priceless painting by the great Leandra MuVinci gets stolen, the Cadets follow the Grumble Gang to get it back.
The Cadets are excited to partake in the Mumu Masquerade wearing their costumes. However, the Grumble Gang crashes the party.
Esme and the Grumble Gang awake the Giant Rainbow Butterfly to destroy Badanamu.
Bada's friends go on a quest to find Snow-Blast Berries in Glacier Hills to throw a surprise birthday party for him.