Barney Ross and the rest of his team fight the founder of the Expendables, Conrad Stonebanks. Since his time with the team, Stonebanks has become an arms dealer who concealed his life from the former teammates. Ross must deal with the increased threat from this devious adversary and enlists the help of new team members. Trench Mauser, Lee Christmas, Yin Yang, Hale Caesar and Toll Road all return for this exciting third installment in the series.