It stars Sharlto Copley, Armie Hammer, Brie Larson, Cillian Murphy, Jack Reynor, Babou Ceesay, Enzo Cilenti, Sam Riley, Michael Smiley and Noah Taylor.

On a cold night in 1978, while driving to meet IRA members Chris and Frank, Stevo tells Bernie that he was beaten up the previous day by the cousin of a woman he assaulted.

The group meet outside a Boston warehouse with intermediary Justine, and a representative, Ord, leads them inside.

The group is there to buy guns from arms dealer Vernon and his associates, Martin, Harry, and Gordon.

As Chris, Ord, Stevo and Harry engage in another shootout, Vernon is severely burned by a fire set by Frank but manages to kill him as he reaches the phone.

One of Chris's associates, Leary, arrives at the warehouse in search of his IRA comrades, but is beaten to death by Harry.

Exhausted and out of bullets, Ord and Chris agree to stop fighting, take the money, and attempt to escape before the inevitable arrival of the police.

They exchange some last banter, and Justine limps towards the exit with the money, but the sound of sirens grows louder.

When red and blue flashing lights appear under the bottom of the exit, Justine realizes that although she survived, she will not escape.

In October 2014, Olivia Wilde, Luke Evans, Armie Hammer, Cillian Murphy and Michael Smiley joined the cast of the film, with Ben Wheatley set to direct from a screenplay he wrote with Amy Jump.

The website's critical consensus reads, "Free Fire aims squarely for genre thrills, and hits its target repeatedly and with great gusto—albeit with something less than pure cinematic grace.