The film stars Ben Affleck, Oscar Isaac, Charlie Hunnam, Garrett Hedlund and Pedro Pascal as a group of former U.S. Army Delta Force operators who reunite to plan a heist of a South American crime lord Gabriel Martin Lorea.

Private military advisor Santiago "Pope" Garcia works in Colombia with local police combating drug cartels.

An informant named Yovanna asks for his help to smuggle her and her brother out of the country in exchange for drug lord Gabriel Martin Lorea's whereabouts.

Pope travels to Florida to recruit his fellow ex-Delta Force teammates, to seize the money under the pretense of working for the government: Tom "Redfly" Davis, a realtor; William "Ironhead" Miller, a motivational speaker; his brother Ben "Benny" Miller, an MMA fighter; and Francisco "Catfish" Morales, a pilot.

They rendezvous with Yovanna and her brother at an airfield where Ironhead's contact provides them with a Mil Mi-8 helicopter to reach the getaway boat off the coast of Peru.

Pope compensates the village elder for the deaths while Catfish, Ironhead, and Benny prepare mules to transport the money through the mountains.

In October 2010, Tom Hanks and Johnny Depp entered talks to join the cast of the film, to be directed by Kathryn Bigelow from a screenplay by Boal with shooting set to commence in early 2011.

[9] On January 20, 2016, it was reported that Depp was again in early talks to star in it, while Hanks' attachment was yet to be confirmed, and Smith had left due to scheduling conflicts filming Collateral Beauty.

[8] In January 2017, it was reported that Channing Tatum and Tom Hardy were in talks to join the film, with Depp and Hanks no longer up for roles.

[11] On April 12, 2017, a month before shooting was set to commence, it was reported that Triple Frontier had been dropped by Paramount, and Tatum and Hardy no longer would be a part of the cast, while Ali and Arjona were still attached to star.

[14] On July 26, 2017, it was reported that Mark Wahlberg was in talks to join the film in the role Affleck vacated, along with Hunnam, Hedlund, and Pascal, with Arjona still attached to the project.

[17] The film's name, Triple Frontier, refers to the Tres Fronteras area of South America,[18] which is known for its high levels of trafficking in drugs and contraband.

The website's consensus reads: "An outstanding cast and ambitious story help Triple Frontier overcome an uneven narrative—and elevate the end result above a crowded field of grim and gritty heist thrillers.

"[29] Entertainment Weekly's Chris Nashawaty gave the film a "B" and wrote that "suffice it to say that Chandor, Boal, and their gruff band of he-men never let things slacken.