Season 4, Episode 19 Hail, Hail, the Gang's All Here?

First Aired: June 20, 2004

The detectives believe they're in the middle of a gang war over drugs, but discover that a vigilante is at the center of the battle. Stacy: Amy Jo Johnson. Jinny: Nancy McKeon. Magda: Lisa Vidal. Nate: Jon Hamm.