A photo. Soldiers in the Gulf. Friends fighting for the greater good. But were they? A secret left to die in the desert has followed them home. And now their loved ones are being murdered one by one. A woman is murdered baby-sitting in a park. Her death is linked to a similar killing weeks earlier.

A murder victim's body is found dumped in wasteland, with no evidence of her identity. Simon leads the team as they delve into the unknown life of Jane Doe. It will take every available hand to untangle this mystery.