A crooked D.A. has aspirations to be Mayor of Chicago, and is holding hearings about police corruption as a way of getting there, focusing on Lt. Crumb's partner who has taken bribes in the past. Crumb's partner steals a portion of the money he and Crumb are using in a sting operation, leaving Crumb holding the bag. The D.A. dislikes Crumb anyway, and proceeds to frame Crumb for the missing money, three weeks before his retirement. Gary tries to help Crumb, but he is his usual obstinate and cranky self.