PC is a super smart Jack Russell Terrier (Forrest) who knows how to use a computer thanks to his brilliant owner Alex (Norman Kaye), who has just learned the secret whereabouts of $1million and stored it on a computer disk which he gives to PC for safekeeping. The evil Anja (Sandy Gore) learns about the treasure and takes care of Alex, but not before the hacker instructs PC to find his pal Susie. PC is nearly to Susie's house when he is almost run over by a car. Stephen (Joe Petruzzi), the driver, and Amy (Rachael Blake), his wife and his kids Zac (Nathan Cavaleri) and Binby (Freyja Meere) see that the dog is okay and take him home. Luckily, the family lives next door to Susan and her adolescent daughter Samantha (Emilie Francois). Zac and Sam become friends while PC figures out how to talk via Zac's computer, which can interpret the dog's barks and whines. His vocal ability comes in handy when Anja shows up to get the missing disk.