From the desolate silence of the Atacama Desert, a forgotten Cold War nightmare awakens. Dr. Elena Volkov, a brilliant astrophysicist, detects an uncatalogued object on a collision course with Earth. It's no asteroid. It's Artemis, an autonomous nuclear weapons platform, a ghost of '80s paranoia, now inexplicably active and believing the war it was built for has already been lost. And its pre-programmed targets are chillingly precise, threatening millions.
The one man who understands its deadly logic is Jack Winter, the aging American engineer haunted by his role in its creation. Thrown together by an impossible crisis, this unlikely pair must race against a five-month countdown. But Artemis isn't their only enemy. As they fight to expose the truth, powerful forces move to bury the past, even if it means sacrificing the future. Can Volkov and Winter unravel the secrets of this orbital specter and find a way to avert a global catastrophe decades in the making, before the world even knows it's under threat?