Lt. Frank Ballinger is a no-nonsense plain clothes cop in the elite M Squad Division. The Squad's task is to root out organised crime and corruption in America's Second City, Chicago.
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Lee Marvin
Detective Lt. Frank Ballinger
Paul Newlan
Police Capt. Grey
Dragnet
Baretta
Major Crimes
T. J. Hooker
The Untouchables
Barnaby Jones
Ironside
Crime Story
Signora Volpe
Hill Street Blues