Alex and Zoe are mistaken for monsters when they first arrive through the portal.

In this episode, the animals fear that they will be returned to their feral, uncivilised state. Zoe is torn between her desire to help and her need to return home.

In this episode, G'Bubu the gorilla is swept back in time to an era when his ancestors fought for control of the trees against their enemies, the giant tree frogs.

Zoe and Alex must recover the Corespore before the Animalians are stuck forever.

Alex and Zoe go on a search for a Corespore in a place where lost Animalian memories go, Memory Canyon.

When G'Bubu is hit on the head by a bongo nut, he assumes the personality of Peter Applebottom, a brilliant but pompous scientist who claims to know how to permanently fix the Core.

Tyrannicus starts his own nation of Tyrannia and teams up with the Creeper to declare war on Animalia, with the goal of driving Alex and Zoe out of the kingdom.

The Creeper sabotages the Core by destroying a main root which causes the animals to revert to their original language. The kids must find the origin spore that allows the animals to communicate.

The search for the Creeper leads Alex and Zoe to the Chamber of Legends, a dusty room filled with Animalian relics. Alex reveals that he helped a weasel escape from the tunnels, and only now does Alex learn that the weasel is none other than the notorious Creeper.

When nightmares plague Animalians, Alex and Zoe go to 'over and beyond', where they must find the Dream-Weaver and rescue Animalia from its dream troubles.

Livingstone and Reenie are struck by the 'glums', a rare Animalian version of the blues. There is only one cure for the syndrome: a good, long laugh. But those affected with the glums don't find anything the least bit funny, so Alex, Zoe, G'Bubu and Iggy must criss-cross the kingdom in search of the funniest joke in Animalia.

Alex and the gang put on a production of Treasure Island, but a corespore blows mid-performance, sending Animalia into a treasure hunt frenzy. Alex and Zoe journey to Over and Beyond to find the missing corespore.

Once a year, Animalia celebrates with the traditional story-telling game known as Scary Story-Go-Round. Everyone in Animalia takes a turn to make up one continuous and very scary story.

Following the blueprints of the scientist Peter Applebottom, the Creeper has invented a device that can corrupt the Corespore. This turns all Animalians, including Alex and Zoe, into ninnies. Gorillas are the only species not affected by the corruption, so G'Bubu leads the quest to restore the Corespore and free Animalia from ninni-ness.

When pages disappear from Animalia's Big Book of Words, Animalians lose the ability to use the words on them. As their vocabularies shrink, the chaos in Animalia grows. Alex and Zoe must find why the pages are disappearing and restore the words to Animalia.

A Corespore blasts off and flies to the land of Over and Beyond, where fictional characters live. With this Corespore missing, Animalians are unable to agree about anything.

With the Creeper gone and peace restored to Animalia, Alex and Zoe decide it's time to go home. Livingstone also decides to take a much needed break, but before he can go, he must choose a new leader. Allegra and Tyrannicus vie for the position, but ultimately Livingstone knows that a good leader must lead with his heart.

After a few days in the 'real world', Alex and Zoe miss Animalia and want to return. But when they arrive, the city is in disrepair. They discover that time in Animalia moves at a different rate and a few days in their world is over a year in Animalia. Much to their surprise, G'Bubu and Iggy are no longer the leaders of Animalia, and instead King Tyrannicus is ruling the city.

The Creeper is back and he uses his knowledge of the Core to gain power and force the Animalians to do his bidding. Alex and Zoe are sent to protective custody, while G'Bubu and Iggy are searching the portals for Livingstone.