Two nations are locked in an endless war, as an underwater tribe battles a kingdom on land. Mati, a young water-tribe warrior, and Nhela, the princess of the land kingdom, are drawn into the conflict in pursuit of their deepest desires. Mati wants to join the fighting to avenge his father, while Nhela struggles to change the way her people see Hatima, the mysterious element that is the cause of all the bloodshed. Their stories collide and challenge the deepest beliefs of both their peoples.