Detroit 1-8-7

Fitch's past comes back to haunt him when his old New York nemesis, Albert Stram, makes his presence known in Detroit just as the veteran detective is enjoying spending time with his son, Bobby. Stram's not so subtle threats shake the usually unflappable Fitch. Meanwhile, the other detectives are called to the scene of a horrific homicide to find an entire family brutally murdered. Fitch tries to put the pieces of the puzzle together and it leads him to a devastating conclusion. With his back against the wall, Fitch asks Washington to protect Bobby, then leads Longford and Mahajan on an extremely dangerous mission to trap Stram; but which side of the law will he come down on in order to save his family and those in the squad? Meanwhile, Longford has second thoughts about his retirement; but is it too late? It's a crucial turning point in the lives of all the detectives.

Happiness turns to horror during Longford's surprise retirement party when the squad learns that one of their own - assistant prosecutor Alice Williams - has been shot dead in a courthouse parking garage. For the victim's close friend, Lieutenant Mason, and the other stunned and enraged detectives, this crime is very personal as they cast a wide net to investigate anyone who could have had a motive. Suspects range from a criminal Williams had once put away to a former boyfriend who may have been stalking her. Closely guarded secrets start to emerge, including Williams' pact with a well-known reporter to build a case against a prominent figure with whom Fitch has tangled in the past. As the plot thickens, the body count rises.

When Henry Malloy, one of Detroit's respected philanthropists and humanitarians, is found shot in his car moments after receiving the key to the city, Fitch is targeted as the main suspect. Even as Special Agent Jess Harkins interrogates the members of the squad about Fitch's possible involvement in the headline-making crime, Fitch and Washington are busy investigating a bizarre case... Three murder victims are found on a public bus with thousands of dollars floating around the crime scene. But the case takes an even stranger turn when the detectives try to track the money, find the missing bus driver, identify the victims and discover a kidnapping gone awry. Will Fitch's usual no-holds-barred effort be enough to bring the murderer to justice? And what will Harkins' investigation of the driven homicide veteran uncover?