Mr. Church reunites the Expendables for what should be an easy paycheck, but when one of their men is murdered on the job, their quest for revenge puts them deep in enemy territory and up against an unexpected threat.

May Munro is a woman obsessed with getting revenge on the people who murdered her parents when she was still a girl. She hires Ray Quick, a retired explosives expert, to kill her parents' killers. When Ned Trent, embittered ex-partner of Quick's, is assigned to protect one of Quick's potential victims, a deadly game of cat and mouse ensues.

When former Green Beret John Rambo is harassed by local law enforcement and arrested for vagrancy, he is forced to flee into the mountains and wage an escalating one-man war against his pursuers.

Barney Ross leads a band of highly skilled mercenaries including knife enthusiast Lee Christmas, a martial arts expert Yin Yang, heavy weapons specialist Hale Caesar, demolitionist Toll Road, and a loose-cannon sniper Gunner Jensen. When the group is commissioned by the mysterious Mr. Church to assassinate the dictator of a small South American island, Barney and Lee visit the remote locale to scout out their opposition and discover the true nature of the conflict engulfing the city.