Dale Robertson, Harris Yulin, Dick Sargent, Margaret Blye, Matt Clark, David Canary, Elliott Street, John Karlen, Steve Kanaly, Woodrow Parfrey, Jim Hill, Don Megowan, Hank Rolike, Eddie Quillan, Max Kleven
Agent Melvin Purvis is placed in charge of running down notorious killer Machine Gun Kelly, and sets out to do just that.