Federal agent Melvin Purvis (Dale Robertson) leads a manhunt to track down outlaw Machine Gun Kelly (Harris Yulin) and his gang of cronies. As they make their way through the Midwest, the fearless G-man and the notorious criminal engage in a thrilling game of cat and mouse. A fictionalized adventure based on real-life personalities, this classic gangster film also stars Dick Sargent, Margaret Blye and Matt Clark.