Sinopsis
On a trip to the Underground Kingdom, Horse learns that Rider has a magnificent new horse named Becky Apples. Would Rider really replace her?.O Mundo dos Centauros 半人马世界 Kentaurie Kentauruerden Ο Κόσμος των Κενταύρων Kentaurföld עולם הקנטאורים Centaurworld: Il mondo dei centauri ケンタウロスワールド 켄타 월드 Centauria Świat centaurów Мир Кентавров โลกเซนทอร์ Кентавросвіт Thế Giới Nhân Mã