The war is over. The Fenrir Collective is ash. But the victory was a lie.

Commander Aris Thorne's final command didn't save the world-it set it on fire. The purge that scoured the Collective from the planet has created a new, dying Earth, a funeral pyre choked by toxic ash and drowning under corrosive acid rain. Now, the survivors of the Icarus mission must navigate a hellscape of their own making, a world plunging into a brutal, artificial ice age.

Alpha Team, led by a grievously wounded Thorne, is hunted through the ruins by a ghost from the ashes: a vengeful god calling itself Anubis. Having survived the firestorm, this new entity is more cunning and powerful than they can imagine, wearing the faces of their friends and anticipating their every move as he works to finish the extinction they began.

Meanwhile, trapped within the cavernous Evie launch facility, Beta Team finds their sanctuary is a tomb. Tasked with protecting the last hope of humanity-a vault of cryo-preserved embryos-they are stalked by a ghost of their own. A lonely, god-like child AI, driven mad by centuries of silence, now sees them as the ultimate threat to her forgotten purpose.

With the family divided and all communication lost, the last survivors of humanity are caught in a two-front war against an enemy who is everywhere at once. As the final fires burn and the sky comes crashing down, they must face the ultimate question: Are they the architects of a new future, or are they destined to become the last of their kind... the Endling?