Charles and Caroline Lasset find a naked amnesiac teen who only recalls her name. While in their care, she experiences visions of a murdered student and develops supernatural powers. As she seeks answers, her past remains a mystery.

A tyrannical king reigns over his kingdom with an iron fist, but there is hope. A prophecy foretold long ago states that a boy will rise up against the oppressive regime and lead his people to the promised land of Promethea. This is the action-packed journey of one boy that sparks a rebellion that ignites a vicious clash where only one group can emerge alive and victorious.