Sophia Petrakova should have lived an idyllic life in her hometown of St. Petersburg, Russia, but she was plagued with horrible visions of the future and destined to suffer a horrible death. At the moment she would have met her fate, angelic beings known as Shepherds saved her. Now an adult, Sophia lives in Washington, DC where she follows the guidance of the Shepherds along with her visions. Stalked by dangerous forces, Sophia needs the protection of her unknown Companion in order to help save the world.

Stefan Chernenko is not who people think he is. Born into a criminal underworld, he was forced from his home and given a new identity by his father and the government he now serves. His destiny as a Companion has bound him to a brotherhood of friends who share a similar purpose. Fate has brought the mercenary face-to-face with his past and now he must overcome his own demons to keep everyone he loves safe.

As Sophia and Stefan plunge headlong into danger, they must navigate their past and their present. Can they overcome the pain of their childhood and survive the darkness coming for them?