Two decades have passed since Earth was ravaged by extraterrestrial, self-replicating robots known as the machines...

Wrenn was raised in Fort Rush, a utilitarian outpost constructed to withstand the apocalypse. When exploring a ruined city, she encounters Delta, an anthropomorphic snow leopard with a mysterious past and a bold plan. Can they stop the alien machines for good? Unwittingly, Fort Rush becomes the staging ground for a battle that may define the future of Earth. The conflict between civilisation and invasive robots runs parallel to themes of transition, gender, and what it means to be human when humanity is all but gone. For some more literally than others.