The herd sets out to find the way home. Wammawink encourages them to be careful and take it slow, but fearless Horse charges ahead.

Horse meets Waterbaby — one of Centaurworld's shamans — and learns about the key: a mysterious object that could reunite her with Rider.

Searching for the next piece of the key, Horse leads the herd into a mysterious forest to see the tree shamans. They grant wishes — but there's a catch.

The friends seek shelter in a cave during a storm... but they're not alone. While looking for an exit, they discover strange paintings on the walls.

The group follows the Rainbow Road into a deep, dark hole, where a Moletaur locks them in jail and informs them that they'll face the judge.

Zulius brings the herd to Cataur Valley, where the shaman is fuzzy but fierce. To earn a piece of the key, Horse goes glam for a silly competition.

Horse hopes to find the final shaman in Merfolk Town. But she's growing discouraged — and looking more and more like a centaur every day.

The herd makes it to the Rift and reminisces about their time together while waiting for Waterbaby to arrive with the final piece of the key.

Horse and Rider face a frightening enemy. Back in Centaurworld, the herd summons up the courage to enter the void and fight for their friend.