An elderly man asks the pair to find his young wife who has disappeared mysteriously, but when Cagney and Lacey start digging they find the wife is not who she said she was.
As the 14th Precinct eagerly awaits the results of their shared lottery ticket, Cagney and Lacey risk their careers by helping a suspended officer crack an illegal gun ring.
Mary Beth is the star witness in a trial that turns out not to be the slam dunk the prosecutors thought it was. Meanwhile, Chris and Mary Beth try to convince a rape witness to not back out of testifying.
When a Jane Doe homeless lady is murdered, Chris vows to find out who she is. Meanwhile, Chris and Mary Beth shoot a recruiting commercial for the NYPD while Mary Beth is fighting a nasty cold.
A date rape investigation divides Chris, who feels the victim brought it on herself, and Mary Beth, who doesn't believe that philosophy. Chris feels honored for the girls to be let in on the male officers' practical jokes.
Chris poses as a nun as part of an investigation into missing drugs from a hospital. Meanwhile, Mary Beth vanishes after a last-minute vacation cancellation.
Isbecki becomes a hostage after Cagney and Lacey fail to back him up properly. Meanwhile, when Petrie accidentally shoots a black child, the department thinks the uproar will go away if the public sees Petrie is black, too.
Cagney and Lacey try to find a way to arrest the son of a immunized diplomat who's using his nation's embassy to avoid justice after hitting a poor man with his car.
The gang from the 14th precinct are robbed at a celebration for Petrie's promotion, and set out to bring the perpetrators to justice before they become the laughingstock of the NYPD.
A con man has to be let go because he had nothing on him when arrested, so Cagney and Lacey have to find a way to get him with the goods. Meanwhile, a fellow police academy graduate of Mary Beth's is a wife-beater.