There's a new arrival in the neighborhood. A highbrow English couple, and their equally-arched cat - Reginald.

The Great Pussini, opera star, comes into town and immediately takes to Sonja.Cleo's owners are going on vacation and plan to put her in a kennel.

Cleo's owners are going on vacation and plan to put her in a kennel, so Riff Raff and the Catillac Cats decide to rescue her. They break into the kennel and rescue Cleo, but not until they completely demolish the building in their attempt.

Heathcliff hears through the grapevine that an over-friendly and slightly dim-witted canine friend of his named Chauncey has been captured by the dogcatcher in the next town. Heathcliff decides that Chauncey isn't all that bad and tries to spring him from the pound.

Riff Raff takes Cleo to a carnival after hours but their fun is thwarted by Bruno, Geldorf and a carnie.

Heathcliff gets into mischief with the local dogcatcher. Sonja is concerned about the dogs that are being picked up so Heathcliff investigates. Once Heathcliff gets involved you know there is going to be some real excitement.

After returning from the beach, Hector, Wordsworth and Mongo discover that their Cadillac has been stolen. Riff Raff figures that a day at the circus will help them take their minds off their loss. But they soon realize that their car is being used by the circus as part of the show. Now they must devise a plan to get it back.

A kitten shows up in the neighborhood with an enormous case of hero worship for Heathcliff. However, he is so much like the object of his esteem that Heathcliff himself can hardly stand his new little shadow. Eventually, the kitten moves on and leaves Heathcliff alone.

When Cleo visits her cousin, LuluBelle, in the country and takes the Catillac Cats along, it's love at first sight for Mungo and LuluBelle. But the amorous boy-next-door, Orville, already has designs on LuluBelle and will stop at nothing to keep his new competition from edging in.

A movie star named Rock comes to town to film a new movie, and Sonja is thoroughly smitten. Heathcliff is wildly jealous, but Sonja forbids any fighting. However, when Rock is exposed as a fake - from his toupee to his false teeth - Sonja's affections return to our hero.

Mungo becomes master of his very own genie when he rubs a magic milk bottle one day. But everyone wants a piece of the action - and his three wishes - as Mungo tries desperately to save his claim.

Heathcliff and Iggy go to visit the zoo so that Heathcliff can finally meet the king of the beasts, the lion. But to Heathcliff's dismay, the lion is a kind-hearted and gentle creature and not at all to Heathcliff's liking. The apes in the zoo make fun of the lion because he is so tame. Heathcliff gives the cowardly lion some pointers on being fierce and strong which helps the lion put those nasty apes in their place!

It's the Cats vs. sneaky Admiral Catsk in a race up the slopes of Mount Whoji next. Bears and mountain goats add to the surprises and fun up the trial; but the biggest surprise of all is Cleo waiting at the top of the mountain to toast the losers with champagne.

The Nutmegs tour the fire station and are very embarrassed by Heathcliff's behavior. That night, while sleepwalking, Grandpa Nutmeg sets the house on fire and Heathcliff saves everyone by getting the firemen there in time, thus redeeming himself for the way he'd acted earlier.

Cleo wants a new bed, so she sends Riff Raff on a mission to find one. Meanwhile, Leroy's cousin Mervin McMutt is in town and using the bedding that Riff Raff needs...

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 all the comfort and gadgets the future holds.

Spike's cousin, Bull, is a ferocious looking guard dog who sports a bone out of his mouth the way a tough guy might use a cigar. He convinces Spike that he no longer should take guff from Heathcliff and proceeds to teach him to defend himself but to no avail. After Bull has harassed everyone in the neighborhood, he challenges Heathcliff to a fight in the vacant lot on Elm Street and guess who wins? Who else, Heathcliff!

Riff Raff enlists the Catillac Cats to aid his attempt to break into a bird sanctuary. After trying everything from a hang-glider to a trampoline, Riff Raff manages to gain entry, only to be bludgeoned by a giant feathered bouncer.

Heathcliff hears Iggy saying how wonderful it is to have a pet, and decides he should have a pet too. He tries out Spike and Mungo, but they do not make good pets at all. He frees a live lobster from the fish store which makes a great pet until the lobster begs to go home to the ocean and Heathcliff generously complies.

Wordsworth is convinced he has a rare cat disease which Riff Raff read about in the paper, so the gang take him to a cat witch-doctor who tells them the only cure is an alligator hair. The cats risk their lives in a swamp before returning to tell the doc that alligators don't have hair. No matter, Wordsworth seems better.

Grandpa takes Iggy to the country club where Grandma challenges Grandpa to a game. Meanwhile, Heathcliff's quarrel with the mice causes chaos in the dining room.

Riff Raff and the cats watch a horror movie, and that night Riff Raff dreams he is Dr. Frankencat and has created a monster. It's a regular nightmare, with even Leroy showing up as the Wolfman. Riff Raff wakes up screaming for help, and glad it was all a dream.

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.