The pilot for the 1971 - 1972 series of the same title. The story of Michael Longstreet, an insurance investigator recovering from an explosion that killed his wife and took his sight. He decides to remain an investigator and find those responsible for his wife's death and his blindness.
Mike is kidnapped, drugged and left for dead on an abandoned salvage ship. Miraculously, he survives and attempts to piece together clues and fractured memories, believing it's somehow connected to a case he is working on.
When Mike begins investigating the murder of a Jazz Society Director, and the theft of two rare and valuable instruments, it leads him on a path into greed, ambition, hidden family secrets and the world of jazz music.
A dying man sets bombs around the city, and then calls Mike demanding a half-million dollars in ransom money. Mike suspects the bomber is someone from a case he worked in the past, as he meets with the bomber to pay the ransom.
A young widow asks Mike to look into the apparent suicide of her husband, who died in prison. Mike enters the prison to investigate, and discovers evidence that he was actually murdered. A convict that Mike had sent to jail is now the "Head of the Yard", running the other inmates like a mob-boss from inside the prison walls, intent on getting revenge on Longstreet. Mike must use all his wits to solve the murder and stay alive.
Nikki is kidnapped after purchasing an antique sewing machine at an auction, and held for ransom. Mike must discover what's hidden within the machine that's of value, and then with Li's help find a way to rescue Nikki.
Mike overhears a woman being killed in a darkened alley, and sends Pax to help her. Pax is critically stabbed, and the attacker simply walks away, realizing Mike is blind. Longstreet must try to find out who the killer is.
A valuable racehorse is stolen and held for ransom. The kidnappers want Mike to deliver the ransom money, because they figure he won't be able to identify them. After the money is paid and the horse recovered, Mike begins to piece together clues that lead him to the kidnappers' identities. The investigation takes Mike down a winding path of murder, infidelity, family secrets, greed and betrayal.
There has been a series of armored-car robberies, and Mike's old mentor, Harold Kemp, is in charge of the investigation. As Mike assists Harold in the investigation, he begins to suspect his mentor is involved.