Canadian novelist Lucy Maud Montgomery has her Anne of Green Gables novel brought to the screen in this four-part production.

Heathcliff learns that playing Momma Cat is no easy task after he is adopted by a tiny kitten lost from her mother. Heathcliff teaches the little girl all about life as they roam the streets together in search of the missing mom, and they soon become fast friends. Heathcliff's big responsibility ends when at last the mother and kitten are reunited, but a touching moment at the end reveals that Heathcliff is really going to miss the little thing....

Sonja tells Heathcliff he needs to lose a little weight, so he goes on to crash diet with the help of the Alley Cats. Every time Heathcliff weakens and tries to eat something, Mungo or Hector snatch the food away. When Heathcliff is finally able to tell Sonja he has lost ten pounds, she admits he'll love him at any weight, so our hero instantly returns to his former gluttonous ways. / Leroy gets a new assistant dog in the junkyard and announces that...

Spike's mother is coming to visit, so he pleads with Heathcliff to let it appear that he runs things around the neighborhood. Spike says he'd be a disgrace to his family if they knew he was second to a cat. Heathcliff refuses on the grounds that he doesn't want his neighborhood misrepresented, and continues to torment Spike at every opportunity. However, Heathcliff quickly learns that he is no match for Spike's mother. / Riff Raff talks Catillac...

Heathcliff breaks into prison to save his father just as his father is released. Heathcliff is locked up and begins terrorizing the entire prison, while Pop moves in with the Nutmegs and begins terrorizing the neighborhood. In the end, a trade is made, and both cats return to their rightful places.

The Nutmegs decide to have a family portrait taken - including Heathcliff. Every time the photographer tells the group to "say cheese," mice appear and Heathcliff dashes to catch them, leaving the studio a shambles in his wake. / An old dirt bike arrives in the junkyard and the cats fix it up to stage a little competition. A gang of tough cats arrives to challenge the Catillac Cats, but our heroes emerge the victors.

Mugsy and Spike challenge Iggy and Heathcliff to a soap box racer competition. Iggy builds a great car out of odds and ends Heathcliff gathers from around the neighborhood. The alley cats join in with a junk-racer of their own, and after a fierce contest fraught with conflict and sabotage, Heathcliff stands alone in the winners circle.

J.B. is a rich, snobbish cat who comes to visit the Nutmegs. He expects Heathcliff to wait on him paw and paw, and even vies for Sonja's attention. However, Heathcliff discovers the dark secret of J.B.'s past and uses the information to his advantage. / Riff Raff, Cleo, and the Cats visit the world famous "Dizzyland" amusement park where they tour the House of the Future. The cats hide when the house closes for the day, and spend the evening enjoying...

Heathcliff accompanies the Nutmegs to the lake Plastered ski resort where he immediately has a tumble with Alpine, the resident St. Bernard. The ensuing fight takes us throughout the ski lodge and onto the slopes; from hot tub to snowmobile before Heathcliff proves himself the better beast.

Iggy and Heathcliff are watching TV and see on the news that a prisoner escaped who looks just like Grandpa. When Grandpa comes home, they think it's him and try to hide him. The real prisoner shows up and Heathcliff and Iggy have to figure out which one is the real Grandpa. Prisoner gets taken away, and all happy. / A big game hunter comes to town claiming that no animal is too difficult to capture. Heathcliff sets out to prove his statement false....