M Squad
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.

A D.J threatens to reveal the influence of racketeers in the music industry. Before he can go to air with the information he is gunned down. M squad are brought in to solve the mystery of the death as well as the validity of the information he was going to reveal.