Martinez goes to visit his drug-addicted brother, but finds the superintendent of his building, Hanlan, is a retired cop who is on the take and is forcing the tenants out, and Kelly sets out to prove that Hanlan is responsible for the death of two of the apartment's residents. Meanwhile, Laura's new job as an Assistant District Attorney takes a turn when she's assigned to a case that involves Giardella. Also, the squad deals with Detective Stillwell, a prankster whose jokes in the station house get out of hand.

Janice is contacted by Richie Catena, a mob button man and former associate of Marino. They want her to start doing favors for them again or they will expose her past activities with the late Marino. Janice agrees to co-operate with them without telling Kelly, but she tells Inspector Lastarza who tells her to go along with it. Meanwhile, Martinez is distraught when he learns that his brother has died from a drug overdose. But their father, Hector, wants to go out and kill the pusher who's responsible for his son's overdose. Also, Medavoy celebrates his 40th birthday and later musters enough courage to ask Donna out on a date to an ice skating rink.

Andy's off-duty and slightly underhanded work to prove that Hatcher killed his own wife lands him a transfer out of the 15th precinct and into the Bellevue Morgue engineered by Detective Hatcher. Meanwhile, the squad is up to their whips and chains after a dominatrix is found murdered.