Set in a fantasy world on the continent of Xadia, which is rich in magic derived from six primal elements: the Sun, the Moon, the Stars, the Earth, the Sky, and the Ocean. Centuries ago, the dragons, elves, and humans of Xadia lived in peace. However, the humans, being unable to utilize magic naturally, began to use dark magic, which is fueled by the life essence of magical creatures. As a consequence, they were driven away to the west, and the continent was split in two by a massive river of lava. 1,000 years later, the human King Harrow of Katolis and his advisor, the dark mage Viren, have killed the dragon king, Avizandum, and supposedly destroyed his heir's egg. In retaliation, elf assassins attempt to kill Harrow and his son, Ezran. Ezran, his half-brother Callum, and the young elf assassin Rayla discover that the egg was not destroyed; they undertake a dangerous mission to return the egg to Xadia.