Sam Hayden is an assassin of assassins, completing every assignment, no matter how dangerous, with ruthless precision. Sam’s next assignment is to take out his legendaryly ruthless predecessor, Charles Managold, who has fallen for his beautiful exotic mark and is now on the run with her. Sam is cold and professional, and there is nothing that could sway him from his missing, not even the love of his life, Nona Messenger, that is, until Sam comes face to face, fist to fist, with his legendary target and shocks himself by not taking out Managold. Now pursued by the world's number one hitman, Isaac, along with his own people, Sam must team up with Managold to take them on and stay alive.