Quentin Locke was a Federal Agent for the Department of Justice. He was sent undercover to work for Internatoinal Patents Inc, which the government suspected of violating anti-trust laws. Locke, himself, was an inventor, having created the Dictograph (an eaves-dropping device), and deadly poison gas bullets. He is a master escape artist (a real Houdini), a good fighter, and usually carries a standard issue automatic.