On a trip to the Underground Kingdom, Horse learns that Rider has a magnificent new horse named Becky Apples. Would Rider really replace her?
Quest roles:
Santigold(Judge Jacket (voice)), Flula Borg(Comfortable Doug / Gary (voice)), Fred Armisen(Splendib / Guard / Human Man (voice)), Dee Bradley Baker(Stabby / Baydenbeast / Bisi-That-Guy / Minotaur / Man (voice)), Donna Lynne Champlin(Prairiedogtaur (voice))