Goldblume goes after the guy who raped his ex-wife, even though she refuses to press charges. A member of Hunter's SWAT team is put under scrutiny after shouting an obscenity while firing at a hostage taker. Calletano participates in an undercover operation at a hotel. Davenport performs a last ditch effort to save a former client who is scheduled to be executed.
An assassination attempt made on Mayor Cleveland leads to a investigation in police corruption. Belker, LaRue, Coffey, Hunter, Calletano, and Washington embark on a trip to Las Vegas which begins with Belker winning $5,000. Hill and Renko's judgment call puts a store owner's life in jeopardy.
Belker, LaRue and Washington go undercover to investigate a garbage removal operation with suspected mafia activity. An elderly woman is raped. After the suspected rapist is let go because his Miranda rights were not read to him in Spanish, Mayo tries to get evidence that he can speak English.
Faye gets suspicious when she visits her dentist and wakes up from anesthesia with her shirt unbuttoned. Perez goes from hero to suspect after he rescues a family from a fire in which a snitch alleges that Perez orchestrated. LaRue, Washington and Belker continue to investigate a corrupt garbage removal business.
Mayo goes undercover to bust a dentist who is suspected of taking advantage of patients while putting them under. Hill and Renko must arrest a guy who just lost his family in a hit and run crash because he has outstanding warrants. Belker gets evicted and moves into Hunter's RV.
Goldblume heads up his own investigation into the death of Gina. Hill uses his broadcast news connections to help a homeless family. With Bates injured, Jablonski is assigned to ride with Coffey. Calletano and Hunter interview for the captain's position. Belker uncovers police corruption while working undercover at a men's clothing store. Washington and Garibaldi get nervous about the station possibly implementing random drug tests.
Garibaldi's legal efforts to quash the drug test screenings are successful. Belker's undercover investigation nets Detective Phil Dugan and Captain Joe Keenan. Hill and Renko are in charge of escorting a bear around. Furillo's drug screening comes up positive for alcohol. Goldblume attends to Gina's estate. With one captain dead and another likely to fired, Calletano sets his sights on a promotion. Jablonski leaves the hospital without his doctor's permission to return to work.