A man believes he has put his mysterious past behind him and has dedicated himself to beginning a new, quiet life. But when he meets a young girl under the control of ultra-violent Russian gangsters, he can't stand idly by - he has to help her. If you have a problem and there is nowhere else to turn, the mysterious and elusive Robert McCall will deliver the vigilante justice you seek. This time, however, McCall's past cuts especially close to home when thugs kill Susan Plummer - his best friend and former colleague. Now out for revenge, McCall must take on a crew of highly trained assassins who'll stop at nothing to destroy him.