At the end of the Cold War, Jack Cash finds himself sitting in a prison with no hope of parole. It appears that this super spy and international bounty hunter's days of intelligence gathering are over. Nicknamed Parthian Stranger by his inmates, Jack spends his days trying to figure out how to escape the prison where he has been hidden for the last twenty years. Everything is about to change for Jack when he awakens one morning to discover he is alone in the penitentiary. With no guards in sight, Jack makes his way up the prison walls and out to freedom. Now on the run, Jack is in a fight for his life and will stop at nothing-even if it means murdering anyone who gets in his way. But after he meets Sara Sanders, a victim of a stalker who enlists his help, he has no idea that the CIA is closing in an attempt to help him. Suddenly the life of a "Parthian Stranger" turns in an unexpected direction that leads him straight into a dangerous situation where he must pull out all the stops to not only save his own life, but also the lives of others.