Plačani morilec in mladi detektiv sodelujeta v zapleteni preiskavi.Plačani morilec (Sylvester Stallone) združi moči z mladim detektivom (Sung Kang) v napeti preiskavi z velikim tveganjem, ki ju pripelje do umazanih stranskih uličic in vse do samega vrha oblasti New Orleansa. Ta nenavadni par, ki ga zbližata kruta umora, ruši vse na svoji poti in je v svojem maščevanju in iskanju pravice pripravljen iti do konca.
In New Orleans, the hit men James Bonomo, a.k.a. Jimmy Bobo, and Louis Blanchard execute the dirty cop Hank Greely in a hotel room. But they are betrayed and Louis is stabbed in a bar by the mercenary Keegan while waiting for the payment of the contract. Meanwhile the Washington D.C. police detective Taylor Kwon comes to New Orleans to investigate the murder of Greely, who had stolen evidences from the Police Department. Soon he is shot by two dirty detectives but Jimmy saves his life. Jimmy brings Taylor to the shop of his daughter Lisa and she removes the bullet from his shoulder and nurses him. Taylor and Jimmy form the most unlikely partnership to investigate the crimes and after contacting the intermediate Ronnie Earl that had hired Jimmy and Louis, they discover a network of corruption formed by the lawyer Marcus Baptiste and the entrepreneur Robert Nkomo Morel.