Marsha Boulton gave up her glamorous job as a journalist, and with her partner Stephen, moved to a farm in the middle of nowhere. Shortly after they learned they would not be able to have a child together. Around this time, Wally came into their lives - a bull terrier puppy with a face like a bicycle seat and an appetite for everything from tree branches to keys. They had no idea they'd actually got a kid in dog's clothing.
When a murder case that Stephen was covering puts him in the line of fire, resulting in their farm being raided by police, and later when Marsha is diagnosed with cancer, it is Wally who keeps them going.