Hercules: Heart of Chaos (Hercules: Heart of Chaos #3)

Betrayed by the traitor within S.H.I.E.L.D., Hercules stands helpless to prevent Ares from returning the world to the technological level of the Dark Ages! And, even if he manages to free himself, the scion of Zeus is now merely mortal - wheres Ares possesses all the power of a god!