Since giving up his life as a government assassin, Robert McCall (Denzel Washington) has struggled to come to terms with the horrible things he’s done in the past and finds strange solace in bringing justice on behalf of the oppressed. While at his home in southern Italy, he discovers that his new friends are under the control of local crime bosses. As events begin to complicate, McCall understands what he has to do: become the protector of his friends facing the feared mafia.