One of an elite group of assassins, Arthur Bishop (Jason Statham) may be the best in the business. Bishop carries out his assignments with precision, detachment and adherence to a strict code, but when Harry (Donald Sutherland), his close friend and mentor, is murdered, Bishop vows revenge. Harry's son (Ben Foster) comes to him with vengeance in his heart and a desire to learn Bishop's trade, signaling the birth of a deadly partnership.