Statham plays Arthur Bishop, a professional assassin. He was assigned to kill Harry (Donald Sutherland) - who was accused of betraying the organization. Harry was also Arthur's friend. For the mission, Arthur killed Harry. After Harry died, Arthur accidentally met Steve McKenna (Ben Foster) - Harry's son. Arthur trained Steve to become a professional assassin and his partner. During a murder contract, Arthur accidentally discovered that he had been tricked by Dean (Tony Goldwyn) - the head of the organization - into killing Harry. With Steve's help, the two killed Dean. However, that was also the moment Steve realized that Arthur was the culprit who killed his father years ago.