The new replacement for Mary Beth comes with a history the 14th Precinct doesn't like--he broke the blue wall of silence when other police were taking bribes, and the Desk Sergeant is taking bets on how long his stay with them will be.
Chris tries to help a West Point cadet who refuses to help himself avoid court martial due to his honor code. Mary Beth receives a visit from her father, who abandoned her and her mother when she was little.
When a lawyer who has made a living helping his fellow Cambodians winds up murdered, Chris and Mary Beth learn he may have been profitting from misfortunes too much. In the meantime, Chris parts ways with her car.
In the fifth-season opener, Cagney, Lacey and Lieutenant Samuels are forced to investigate one of their own. It starts when a junkie's broad-daylight burglary makes him easy prey for Cagney and Lacey, who happen to be across the street at the time. What isn't easy to take is the tip the addict offers in a bid for leniency; he says he saw a cop pocket some heroin from a crime scene--a detective from their own 14th squad. Bypassing Internal Affairs, Chris and Mary Beth go to Lieutenant Samuels, who orders them to have the junkie ID the alleged felon--and it's a real ...
When an girl who wants to break away from her traditionally Islamic upbringing is murdered, Chris and Mary Beth must confront her family. Chris lusts for a possible assignment to a potentially career-making task force.