The Third Legion has been smashed, and the world has risen in unity under the inspiration of the new Captain Fox, who now aids the world along with his family much as the Thomases did over a century earlier. For though the peace on Earth is prevalent over most of the world, there are yet those who would seek to make dissent or terrorize those about them, claiming the "Legion" name for their own goals. As the returned Skylord aids in stamping out the flames of these dissident terrorists, one of the heroes of the Great War makes a discovery that will forever alter the perception of humanity as they gaze out into the stars, for the discovery he has made reveals that the people of Earth are not alone in the galaxy...