Grandpa accidentally feeds Heathcliff some Super doggy Vitamins. Gradually, Heathcliff undergoes a startling transformation which includes barking at trucks and passing up fish in favor of bones. Worst of all, he finds himself feeling friendly toward Spike. Heathcliff eventually sets things straight by taking a massive dose of cat vitamins, with Iggy's help.

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

The cats put a new engine into the Catillac not realizing it is a time machine engine of Professor Craziloon. Before they know it they're back in the old West. After a few close calls with some rough and tough characters and a wild stagecoach chase in pursuit of their stolen caddy, they get the car back in the nick of time to be transported back to the future.

Mungo looks into the garbage can in Screwloose's painting and literally falls into the painting. Not realizing this, Hector adds a lid to the can trapping Mungo inside....

Heathcliff spreads false news around the neighborhood after hearing the city plans on trimming the trees.

Mungo's giant creation of a metal moving cat is ridiculed by the gang. Mungo overhears Mangle's plans to destroy the junkyard then buy it cheap. The Cats make hasty plans to defend their home, but Mangle's forces are overwhelming. It looks like all is lost until Mungo brings his Super-Cat on the scene to drive them away.

The Nutmegs take Heathcliff to a "Shrink" -- the famous Dr. Hans Headfixer. After a few sessions, Heathcliff's a new, docile housecat. The Nutmegs aren't exactly happy with the 'new' Heathcliff when a burglar comes calling and Heathcliff actually helps the intruder out.

After Riff Raff saves Mungo from a bad fall, Mungo becomes Riff Raff's servant in gratitude and slowly drives Riff Raff crazy.

While browsing through a magazine, Heathcliff dreams of what it would be like to be a rich Beverly Hills cat. He soon finds out, slipping off into dreamland. But once in Beverly Hills, Heathcliff finds out it's not the land of milk and honey he imagined. Lacking status, clothes and manners, he is soon pursued by an angry mob who feels he doesn't fit in. Heathcliff awakens to find he's safe in the Nutmeg household, which beats Beverly Hills any day.

Mugsy is tired of Spike losing to Heathcliff and tosses the dog into the streets. Iggy takes pity and offers to take Spike in, to Heathcliff's horror.

Mungo sees the feline of his dreams, Lulu, (who looks just like him), but doesn't know how to ask her out.

Heathcliff switches places with a rich cat, a look-alike named Beatcliff. They both adjust to their new lives, until Heathcliff meets Beatcliff's fiancé Agnes, and he skips out on their wedding.

Mungo finds out he is worshiped as a king on an island paradise. The rest of the gang go after him to rescue him from his life of idle riches.

Heathcliff remembers the story of how they first got together. Heathcliff's story of how it happened varies from Sonja's story.

Mungo trains and competes in the Catlympics. Riff Raff makes a side bet with a competitor named Louie that Mungo will win every event or if he loses just one, that he'll take over the junkyard.

Heathcliff thinks he witnesses Spike get dog-napped while he is laid up with a broken leg. He sends the Alley Cats on a detecting misadventure.

Looking for some fish to eat, The Catillac Cats stop at a sushi bar. They are assaulted by a ninja cat. Riff-Raff challenges him to a fight on their turf - the junkyard!

Because of his habit of stealing fishes, Heathcliff is put to a therapy where in order to break his habit.

The Catillac Cats throw a birthday party for Leroy and they reminisce about how they all first met.

Heathcliff's thrilled to learn that his Mom is coming to visit, but terrified that she'll discover he's fibbed about living with a wealthy family. He concocts a plan to fool his Mom, but learns the hard way that one should always tell the truth.

It's winter, and the Catillac Cats are going to play a little hockey! Their opponents: The Catastrophe Cats, a rather large team of tough cats.

Monty Manx hires Hector to be his bodyguard after the rest of the gang mug him, but the cats scam him out of advances on Hector's pay.

Out-of-weight, out-of-shape Heathcliff is coerced into a crash course at the local cat health emporium.

Cleo is "Miss Off Road" and will present the trophy and kiss the winner of the Big Race.

Spike meets Albert, who promises to help Spike get Heathcliff back for all the bad things he's done to Spike. Unfortunately everything Albert plans winds up backfiring on Spike!