Jack Russell lives with his landlord, Sarge, in Doggeroo. Sarge detects human-type crimes. Jack detects important crimes. That means the ones that deal with dogs. Whenever there's a mystery that needs solving, Jack is the dog for the job. Though he is often hampered by the well-meaning but bumbling Red, he always manages to sniff out the truth in the end. Contains #1: Dog Den Mystery, #2: The Phantom Mudder and #3: The Mugged Pug.