Sariya Larken was just an average teenager living on the peaceful human colony world of Candor...until the day they came. The Kro'Mar. A mysterious alien race intent on nothing less than the utter destruction of humanity itself.

In an instant, Sariya lost everything she held dear.

Consumed by rage and grief, she joins the military to fight back. But when a routine training mission goes bad, Sariya finds herself stranded on an unknown planet behind enemy lines and forced to rely only on her wits and will to survive.

However, all is not as it seems. The Kro'Mar are also on the planet, and when Sariya discovers that they're looking for something ancient and vital to their war effort – something she has inadvertently come into possession of – she must race to keep it out of their hands and get back to human space.