S6, E17: Jake and Charles investigate a dangerous serial killer; Holt continues to spar with his rival, Commissioner Kelly; Terry finds out about whether or not he has passed the lieutenant's exam.

Starring Gabe Liedman, Phil Reeves, Tim Meadows

S6, E17: Jake and Charles investigate a dangerous serial killer; Holt continues to spar with his rival, Commissioner Kelly; Terry finds out about whether or not he has passed the lieutenant's exam.