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.

All of Centaurworld’s residents gather for the hootenanny. But can Horse turn this colorful collection of creatures into a fearless army?

Horse leaps into the Nowhere King’s mind and learns his haunting backstory. Meanwhile, Rider and the herd come up with a plan.

Horse tries to recruit an army to defend Centaurworld, but no one wants to join. The herd visits the Horsetaurs’ castle to see if they’ll help.

On a trip to the Underground Kingdom, Horse learns that Rider has a magnificent new horse named Becky Apples. Would Rider really replace her?

Sam and Nellie’s story comes to a tentative close — but not before one last encore of hopeful, heartbreaking and healing performances.

Jim convinces Dwight that he needs to choose someone to act as an Assistant to the Assistant Regional Manager; the two subsequently hold tryouts for the position. After her daycare…