Shannon

Serving on the arson squad, Shannon attempts to gather information from an old adversary who is now running a protection racket.

Detective Jack Shannon returns to New York City to investigate why a seemingly airtight case has disintegrated. This marks Jack's first case back in the Big Apple. He must defend himself against accusations that, as a New York police officer, he coerced a witness. However, his progress is halted when the NYPD scrutinizes his conduct in his most recent case.

Shannon discovers that his father-in-law, Paul, is a victim of loan sharks. Paul has been pressured to commit a crime in order to repay a debt. While Shannon is occupied with helping his young son adjust to their new life, he learns that his father-in-law, a fisherman, is in desperate need of assistance. The loan sharks are threatening to take Paul's boat and home unless he allows them to use his boat for drug smuggling.

Ivy Horton attempts to kill her ex-husband, Alex, a mental patient, to protect herself and her daughter. The man who threatens his family cannot be arrested until he commits a crime.

Shannon teams up with a female detective investigating a series of rape cases. However, the policewoman is resentful of his assistance.

Shannon is involved in corruption, but his true objective is to dismantle a gambling operation. This all began with the suicide of a police officer who was suspected of accepting bribes. Seeing an opportunity, Shannon decides to build relationships with some of the influential people in town. One notable figure is Burt Harvey, who is eager to make an "investment" in exchange for valuable information. With the assistance of Connie, the girlfriend of the deceased officer, Shannon and Moraga set out to eliminate all illegal activities.