Det. Con. Willis investigates a diamond robbery, while Det. Sgt. Bulman and Det. Con. Doran are on the trail of some men who have been beating up nightclub hostesses.
Bulman and Willis investigate the theft of a mailbag from a postman.
Bulman goes undercover in a betting shop, while Doran gains employment with a professional gambler.
The Unit investigates the death of a newspaper journalist. Doran goes under cover at the newspaper, while Willis helps out at the coroner's office.
Bulman dons a uniform and accompanies Sgt. Briscoe on the beat to investigate allegations against the officer.
D.C. Willis and W.D.C. Doran go undercover as a married couple to investigate a local politician suspected of engaging in illegal financial transactions.