In "The Expendables 2," Barney Ross and his team of mercenaries reunite for a seemingly routine mission, but things take a deadly turn when one of their own is killed during the operation. Seeking revenge, the Expendables embark on a mission to retrieve a valuable item from a hostile territory. Along the way, they encounter their old adversary, Jean Vilain, a ruthless arms dealer. Fueled by vengeance and armed to the teeth, the Expendables engage in epic battles, facing overwhelming odds as they strive to take down Vilain and his army. Amidst the chaos, bonds are tested, and sacrifices are made in the name of brotherhood.