A police dog finds heroin in a girl's backpack; Jacocks goes to Detroit for a training seminar.
When BCPD's police dog, Cookie, sniffs out a stash of heroin in a young girl's backpack, Russ and Milt have competing theories as to where it came from and why she had it. Also, Jacocks travels to Detroit for a training seminar, with the ulterior motive of finding out why Milt was sent to Battle Creek.
Battle Creek's unreliable police dog Cookie's fine nose makes her jump school girl Katori, whose back pack turns out to contain a kilo of heroin, but she refuses to tell where she got it. Milt and Russ work on theories implying her parents, local drug gangs or her cop uncle Joey, who has access to confiscated evidence.—KGF Vissers