In a new Cold War between Earth and the colonies on Mars when devastating weapons go missing there's only one team you can call  the Outriders. A crack force of highly specialised super-soldiers their clone bodies are near-immortal. When a fully-autonomous vessel with orbital strike capabilities goes missing it's up to the Outriders to track the untrackable. But when the trail leads them to the influential Martian People's Collective Republic the operation gets a lot more complicated...