The elite group of mercenaries Expendables, who perform all sorts of missions from assassination to rescue, are hired to overthrow a Latin American dictator, General Garza, who is interfering with the plans of a group led by the mysterious man called Mr. Church. But sooner, the leader of the Expendables, Barney Ross, recognizes that the real target of Mr. Church is not Gaza but the cruel CIA officer staying behind and controlling him - James Monroe, which brings many changes to the mission implementation.