In this gripping crime drama, prizefighter-turned-government inspector James Cagney is recruited to deal a knockout blow to racketeers and corruption in the food and meat-packing business. Because he is far from a "dirty rat" and basically incorruptible, Cagney and his crusade are met with fierce resistance by the shady players who'd rather see him take a dive─permanently! With James Burke, Edward Brophy, and Cagney's "The Public Enemy" co-star, Mae Clarke. 74 min. Standard; Soundtrack: English.