A group of strangers find themselves trapped in a maze-like prison. It soon becomes clear that each of them possesses the peculiar skills necessary to escape, if they don't wind up dead first.

Accident prone teenager, Percy discovers he's actually a demi-God, the son of Poseidon, and he is needed when Zeus' lightning is stolen. Percy must master his new found skills in order to prevent a war between the Gods that could devastate the entire world.

When a cure is found to treat mutations, lines are drawn amongst the X-Men—led by Professor Charles Xavier—and the Brotherhood, a band of powerful mutants organised under Xavier's former ally, Magneto.