The Gunman (2015)

Jim Terrier had a long career as a soldier that transitioned to a life as a mercenary in his fifties. Seemingly unable to give up fighting, he takes on a contract to assassinate the Congo minister in charge of the country's mines. The assassination is successful in that it strikes a match to a country perpetually on the precipice of war. Terrier leaves to let the country deal with the havoc he wreaked, but he'll eventually have to reap the consequences of his actions when he returns to the Congo years later. Terrier finds that he's being hunted, and a team of assassins is tracking him.

The Gunman is an action movie featuring Sean Penn.

It is possible to buy The Gunman on Amazon Video, Apple TV, DIRECTV, Google Play Movies, Vudu and YouTube.