Brennan Rhodes is the older brother of Michael. On his brother's birthday, Brennan and his mom were decorating the house for the party while his father played catch with Michael, just outside the woods. Michael chases after the ball into the woods and is never seen again.
One year later a mysterious, barbarian looking man is found wandering the woods who claims to be Michael. Brennan enters the interrogation room to try and discern one way or another if this was truely his brother. Aaron (their father) recognizes the man as his lost son and helps free him the interrogation room. Brennan leads Barbarian to where his weapons are stored.
Michael claims that he spent years in a land called Terrenos, defeated the evil overlord "God King Lore" and returned to earth chasing residence of Terrenos and agents of God King Lore. Michael's must defeat these agents before they destroy the earth.