Torn and desperate, Cassidy Hart and her team make a difficult decision to relocate their forces to the cold, barren wilderness of Alaska. Yukon City has become a stronghold for survivors of the apocalypse.
Or has it?
Cassidy is on her own. Commander Chris Young remains in California to combat the shadowy forces of Omega, while Cassidy attempts to rebuild the militia's strength at Yukon City. Uriah True has ideas of his own when it comes to surviving, and the militias are splitting apart.
Veronica Klaus is unleashing hell upon the west coast. The true, terrifying nature of Omega is revealed at last. A dangerous, desperate move is made to find reinforcements and seize a weapon that could give the militias an upper hand.
It just might kill everyone on planet earth.
Cassidy, Chris and their friends have made it this far.
How much longer can they survive?
How much longer can the world survive?