Bounce is determined to conquer all the highest summits in the junkyard, but when she tries to scale one in Snike Hill she climbs so high that she freezes, loses her stretch and risks capture by the Snikes.

Tink is desperate to get his name into the Gumbledex, a record of outstanding Gumble achievements, and so sets out to break a record.

Happi has finally finished building his Gumbly Horn and wants to put on a performance, but then Bounce breaks the spring that powers the horn.

Merri and Jolli leave the Gumbletree after overhearing Tink insulting their singing, but when WeatherSnike hears them, she is dazzled.

When the ball from their game of pock-pock ends up in the hands of the Bottersnikes, Tink, Bounce and Willi try to retrieve it.

Tink finds a Bottersnike disguise in the junkyard and puts it on to scare his friends, but then he is mistaken for a real Snike by Snorg and Glob.

Grubloom Day is the one day of the year when a rare flower blooms and delivers up delicious grubs for the Gumbles, but when Bounce eats Willi's share, she is determined to make it right, and sets off to Snike Hill to find another Grubloom.

All the Gumbles are competing in the Gumble Rally, a fast-paced race through the junkyard, but they run into the Bottersnikes who have set up camp in the middle of the course, leaving Merri and Jolli to overcome their bickering to work together and rescue their friends.

When a nasty case of the Snike flu spreads through the Gumbletree, Toot is forced to overcome his greatest fear and venture back to Snike Hill to retrieve the only known cure for the flu - mattress stuffing.

Tink steals the Bottersnike's giant magnet, but instead of destroying it as planned, Tink, Bounce and Willi decide to use it to barricade the Snikes into Snike Hill.

Tink mistakes the sun reflecting off a discarded toilet seat as a special weapon.

Willi stumbles upon a baby Snike conjured up from one of Smiggles dreams.

Tink tries to trick the Snikes into thinking there is a Snike-eating Gumble on the loose.

Tink must work with his nemesis Glob in order to return to safety.

When the Snike King launches an attack on the Gumbletree, Tink manages to shrink him in the water and take him as their prisoner.

After twice mistakenly claiming to have seen a monster, Willi is reluctant to be made a fool of again and doesn't alert anyone when he spots something suspicious under the Gumbletree. But when the Snikes kidnap his friends, it's up to Willi to save them.

When Tink, Bounce and Willi find themselves trapped on Snike Hill with no memory of their capture, they try to recall what happened, but Tink and Bounce have very different versions of events, each placing the other at fault.

When the Bottersnikes discover they need smaller hands to reach some sofa rot in their mattress mine, they use Gubbo's new Gumble-grabber to snatch the Gumbles from the Gumbletree to do it for them, leaving Float to mount a solo rescue.

After learning of Happi's failed experiment to send a Gumble into space, Tink becomes determined to try it, but when he is detached from his safety rope, Happi must launch himself into space to save Tink.

Float is growing increasingly annoyed by Merri and Jolli distracting her search for the mythical three-headed dump dragon, but when she tells them to go and play in the storm, and they end up captured in Snike Hill, Float feels responsible and mounts an ingenious rescue mission.

After getting a grater stuck on his head, Willi is mistaken by the other gumbles for the legendary, snike-slaying Captain Grate Face, and finally starts getting the respect he deserves, but when the snikes show up, Willi must either come clean or live up to his newly acquired heroic reputation.

After Tink recklessly stinks out the Gumbletree, he tries to behave more responsibly as he leads the gumbles on a snike lookout, but when he takes his responsible attitude too far, he gets Merri and Jolli captured by snikes and must revert to his old, impulsive habits to save the day.

Happi is teaching gumblecraft to try to instill its virtues into the other gumbles, but when the snikes destroy the dodge gumble pitch during the class, the gumbles blame Happi, who sets out to prove the worth of gumblecraft by using it to trap the snikes.

When a blue moon causes blue grubs to spring from the ground, Happi warns the other gumbles about the dangers of eating them, but Merri accidentally eats one, and turns into a fierce weregumble, charging into Snike Hill looking for prey.

When Tink is assigned lookout duty while the other gumbles pick berries, he builds a dummy to cover for him, but when his failure to keep a lookout allows the snikes to approach, they mistake the dummy for a real gumble and take it to the King, leading the other gumbles to launch a rescue mission for what they think is Tink!