Heaven is now happily married and ready to settle back in her hometown. But during a visit to Farthinggale Manor, Heaven is persuaded to stay. Lured by Tony Tatterton to live among the wealthy and privileged, Heaven seems to have it all until the ghosts of her past rise up again, threatening her precious new life.

A secret war between cats and dogs quickly peaks as Professor Brody a scientist tries to create a serum to cure dog allergies in humans. As the unsuspecting humans go through their busy lives, the cats make several attempts to possess the formula, as their canine foes try tirelessly to stop them. Caught in the crossfire, a young beagle named Lou, adopted by the Brody family, tries hard to succeed as a secret agent, and in being a friend to the young Scotty Brody. A evil snow white cat named Mr....