The daughter of the chief of the Heart tribe, Raya is a warrior princess who is appointed the guardian of the Dragon Gem. When the gem is broken into pieces, the plaque monsters known as the Druun are released to threaten the land of Kumandra and turn all the people, including Raya's father, into stones. She soon travels across Kumandra with the last remaining dragon, Sisu, and Tuk Tuk the pill bug/armadillo hybrid to retrieve the gem pieces and use its power to vanquish the Druun.