Shannon is assigned to work with Judy, a policewoman, who resents his help. Shannon joins the lady detective working on a series of rape cases.

Shannon is on the take, but it is only to break a gambling operation. It started with the suicide of a police officer suspected of having received bribes. Shannon seizes this opportunity to cultivate friends among the wheeler-dealers in town. One particular person is Burt Harvey, who is happy to make an "investment" In return for information. With the help of Connie, the dead officer's girlfriend, Shannon and Moraga set out to wipe out the entire Illegal actions.

The investigation of a black politician's murder is complicated by the involvement of the syndicate. Shannon's boyhood friend and adult nemesis, Bunky James (Ron O'Neal), is released from jail to help him investigate the politician's murder which looks like an execution by terrorists.