The team revisits the man's legitmate children again, this time to arrest them as murder suspects who were trying to keep a portion of their father's fortune from going to the newly discovered third child.
Meanwhile, Russ offers some personal information to Milt, namely that he's in love with Holly, in hopes of getting Milt to open up about his personal life.
Meanwhile, Holly receives a bouquet of flowers from an anonymous source, and Russ fears he may have called to send them while drunk at the bachelor party.
While making a speech to kick off the city's annual "Breakfast Day" celebration, Mayor Scooter Hardy is shot at multiple times, but the first bullet hits a young man in a cougar mascot suit who had just walked in front of the mayor.
While the two investigate the syrup angle, Holly sees signs that the victim's spouse was likely abused, revealing another possible motive.
Elsewhere, Detective White receives phony pot from a local medical marijuana dealer.
During a bachelor party, the detectives get a call that Commander Guziewicz's house has gone up in flames.
Russ finds glass from a window on the inside of the house, suggesting someone broke in and set the fire deliberately.
Meanwhile, Detective Jacocks helps Russ get to the root of why Milt was reassigned from Detroit to Battle Creek.
Russ and Milt investigate the death of a local woman who had been a drug addict and prostitute, but who had apparently cleaned up recently in an attempt to reconnect with her son.
But Russ gets overzealous and interviews a suspect without the man's lawyer present, causing Commander Guziewicz to place him on suspension.
Milt finds a way to keep Russ involved in the case by hiring him as an FBI consultant.
The detectives first investigate a Battle Creek police officer who is the girl's uncle, but he says he would never do that to his niece and they find no evidence of drug dealing in the officer's house.