The Expendables 3

An assignment to stop a powerful weapon from falling into the wrong hands ends in a shocking turn of events for Barney Ross (Sylvester Stallone) and his crack team of mercenaries, known as The Expendables. They discover that the ruthless arms dealer they are pursuing is none other than Conrad Stonebanks (Mel Gibson) - Barney's former partner and Expendables' co-founder, and a man he thought he had killed more than a decade earlier.