Furillo gets orders to deal with a neighborhood merchants' association; Esterhaus goes out to meet a criminal he helped put away; Harris and Santini get into trouble with the deadly black van; and Hoban's lie detector results are inconclusive.

Renko gets put out when a Division homicide detective ridicules his efforts to learn who killed a 15-year-old prostitute; Furillo learns that he may be in line for a promotion to commander; LaRue and Washington have a surprise for Hunter during his annual alligator hunt in the city sewers; and Fay asks Furillo's help with an obscene phone caller.