Jet is hellbent on revenge for the death of his younger brother, and that thirst for vengeance extends all the way up to the President herself. But some people are silver-tongues, and Cameron is swayed back to trust. Promoted to Lieutenant, Cameron is issued a new mission and is on the hunt for answers. He must figure out who his allies and enemies are, before he winds up with a knife in his own back.

The alien invasion is still a threat, and Cameron is torn between duty and doubt while just trying to survive. His newest assignment takes him to the post-apocalyptic Blockade at Mammoth Cave, Kentucky. He's needed to train recruits, strengthen defenses, and plan a strike against the gorgons that have taken over a dystopian Planet Earth.

Love was never part of the plan, but surviving side-by-side with Allison Trudy, Cameron finds himself falling for her. Little do they know they're walking into a trap: one that might just destroy everything they've built. Failure isn't an option: the survival of mankind hinges on their success.

The final battle looms, and redemption awaits...for better or worse.