Who is raiding the kitchen cupboards every night, making off with biscuits, sweets and chocolates galore? Gerty is the initial suspect but she blames a kindly but greedy monster.

Fiona is overjoyed to be in the school's fashion parade but disaster strikes as she twists her ankle. One of Dr Dog's old inventions, a pair of self-walking shoes seems to do the trick... until one of our hero's patients turns up.

A dog is terrorisng the neighbourhood. All the victims point to one dog: Dr Dog who's sentenced to 5 years in the dog pound. But it turns out that another beagle is the real culprit.

When Dr Foyle's uses one of his diabolical inventions on Gerty's chameleon, Leo finds he can make people invisible with a touch of his tongue.

Fiona has her mind set on becoming a stage actress. Which would be fine if she could only read her lines without bursting into giggles ! Dr Dog discovers she has a stomach anomaly, "a giggling gut" and there's only one way to fix it!

When the plant Gerty found at the town dump falls ill, Dr Dog comes to the rescue. But as the plant gets better, it starts growing - at amazing speed ! - and our hero realizes it's an extremely greedy carnivorous species.

When the celebrated Dr Dog is invited to present his latest inventions at a conference in a luxury hotel, the Gumboyles insist on going with him. They promise to behave - but, of course, they don't.

Tchou Bidouha, the most famous rock singer of his generation, begs Dr Dog to find a cure for the persistent hiccup which causes him to spew soap bubbles in frequent fitfuls. Dr Dog is sure a good scare will do the job. Problem is nothing scares the superstar - ever. Meanwhile, Kev and Gerty help Fiona find a cool look to seduce their hero.

As Fiona and Baby return from a stroll around the docks, their hair starts growing at top speed all of a sudden ... and turns bright pink Ma and the Gumboyle girls blame Achilles, the laboratory rat Kev has brought home. But Dr Dog soon realises they've got it all wrong and discovers the true culprit : Dr Foyle's super powerful fertiliser and its highly toxic fumes.

Grandpa suffers from all sorts of aches and pains. Dr Dog brews him a "youth elixir" which causes Grandpa to feel as lithe and fit as in his long lost youth! But as Grandpa's body grows younger, he starts behaving like a teenager.

Dr Foyle uses a cold snap to cause a string of accidents hoping patients will flock to his surgery. When Dr Dog finds out, he uses his latest invention, a miniature transmitter to persuade Foyle that his conscience is speaking to him.

As the fiendish Dr Foyle attempts to steal Dr Dog's patients, he comes up with a new "sneezing" virus which contaminates living beings along with plants and inanimate objects, causing weird purple spots' eruptions.

Vic Larsen, the famous anchorman, hits on the idea of a live interview of Dr Dog. Ratings will rocket ! But as he enters the Gumboyle home, he has an even better idea : a Gumboyle reality-show.

Foyle creates an alpha-kappa wave emitter that is supposed to regress Dr. Dog into a plain old doggie. He buries the machine in the middle of the garden but it has no effect on our hero. It works very well on any humans in the area.

Dr. Dog can't compete with Pa Gumboyle's latest acquisition: a robot dog. It puts him to shame as far as normal doggie duties go so Dr. Dog packs up and leaves. Little does he know that the Gumboyles will soon need him more than ever.

What happens when an elephant in a small traveling circus drops the ball because he has a bad case of the blues? Dr. Dog searches for a cure to restore the elephant to his normal good spirits as finding the cause will be no mean feat!

An encyclopedia topples on Dr Dog's head, causing him to lose his memory and adopt a dog-only behaviour. The children, are hard put to persuade their dear doctor to revert to his usual self.

A kindly old grandmother persuades Dr Dog to train her grandson boxer, Joe Brawnie. The kid has lots of brawn, but pretty few brains. In fact, he would be well advised to pick another sport!.

When Dr Dog is awarded a scientific prize, the Gumboyles find themselves with a huge sum on their hands. The money soon goes to their head and they move into the Royal Palace ... where they promptly wreak havoc.

When Dr Dog realises that some diseases are best cured by hypnosis, he decides to ask the advice of a famous bogus fakir and real hypnotist who performs in a circus.

Dr Dog uses a Tsetse fly to cure Gerty's insomnia but it escapes. The whole Gumboyle family comes down with a sleepwalking sickness that can't be cured while the fly is active. Nobody except our ingenious Dr Dog, can find it.

Dr Foyle tries to persuade an audience of distinguished doctors that he can bring a cat mummy back to life. Dr Dog is quick to show him up as a quack.

When a nasty cold causes Margaret Pouncefoot to lose her voice, she consults the nearest doctor - i.e. Dr Dog, who promptly concocts some throat pills to help her recover her voice.

During the Bud Feast, Miss Pickle attempts, once more, to charm Grandpa. When he gruffly rejects her advances, she unfairly accuses Kev of knocking her over with his skateboard.

A strange illness is spreading. People don't walk anymore - they leap ! Dr Dog's investigates and discovers mutant fleas, boosted by an extra powerful washing powder. Dr Dog sets about finding a way to get rid of the pesky bugs.