Cleveland, 1945. OSS spy Hal Schroeder returns from two harrowing years behind German lines. The horrors of war have left him bitter and cynical. He is recruited by the FBI to infiltrate the Cleveland mob, to conduct a series of escalating sting operations that target elusive crime boss Teddy Briggslavski, a.k.a Mr. Big. Hal signs on, planning to double cross the feds, pocket their front money and disappear. He struggles to walk the double cross tightrope between the G-men and the mobsters until the FBI gives him the final sting, a huge payroll heist. Hal Schroeder goes to his long-sought meet with Mr. Big, confident he can turn the heist plan to his advantage and make off with a bundle. But he gets a very unpleasant surprise. Three very unpleasant surprises.