As the battle against the invading aliens intensifies, a group of bad boy bikers and mercenaries will stand and fight for humanity's survival...

Squad Three berserker Dom Santora has an ugly past he can't forget. Born and raised in the darkness, he spent his life before the alien invasion as a Mafia enforcer. He's found some meaning fighting against the aliens with his fellow berserkers, but he knows his soul is too stained to ever find redemption. And there is no way he'll ever deserve the quiet beauty of a woman like Arden Carlisle.

When the raptors invaded, Arden lost her husband and children in the first horrible, bloody wave of the attack. Since that terrible night, she's survived, but she hasn't been living. Hollowed out by her grief, she's found a way to keep going as the comms officer for Squad Nine. But lately, color has started to seep back into her world, and the person she sees most clearly is the dark, handsome, and lethal Dom.

Dom and Arden are two damaged souls who find each other in the darkness. But the Gizzida are putting the final pieces of their endgame into place. The aliens want the Earth and to wipe out the human survivors once and for all. As Dom, Arden, and the berserkers work to find a deadly alien bomb, they uncover the true horror of the aliens' plans. To have any chance at love, life, and survival, Dom and Arden will have to fight harder than ever before.