Great-aunt Loretta threatens to take Grandpa's pet Beowulf to the dog pound, but he only makes matters worse by trying to help her love the animal.

Jason's sister Jemima looks after the school hamster for the weekend, but the siblings discover the rodent has a taste for adventure and have to rely on Grandpa to save it from trouble

Mr Liker Biker plans to raise funds for the Young at Heart Club by cycling up Mistymoor Mountain, but becomes more interested in arranging his gear than reaching the summit

Jason saves his money to buy a robot from Mr Whoops' toy shop, but spoiled boy next door Troy gets there first

A famous film star visits, but Grandpa is horrified when he discovers she has big plans to change Sunnysands.

When a food inspector visits Miss Smiley's cafe, Grandpa tries to lend a hand to make sure she gets five stars - but ends up being a pest.

Mum prepares to take a family photo and needs everyone looking their best.

Jason has a special song to perform at the summer show, but Grandpa is not well and Mum does not want him to attend the event.

Accident-prone Mr Whoops looks after the cafe while Miss Smiley is away and encounters a difficult customer.

Great Aunt Loretta asks Mr Hackit to tidy her garden, but Grandpa and Jason like it just the way it is and decide to stop him doing any work.

Miss Smiley takes Jason and Troy to Mr Whoop's toy shop, where Grandpa sets about teaching his grandson's spoilt neighbour good manners.

The naughty next-door-neighbour causes trouble for Bubbles the babysitter when he is having fun with Jason and Josh

The accident-prone Mr Whoops decides to buy a bike, but Grandpa thinks this a bad idea and tries to persuade him that there are other ways to get fit.

Jemima has a birthday party, with food, games and a magic show by from Mr Marvelloso

Mother is learning to play the trumpet, but her practising is rather painful on the ears. When she is asked to perform at Miss Smiley's cafe, Grandpa realises he will have to help.

Aunt Loretta falls ill and looks as if she will miss Rick the Rocking Raver's concert, so Grandpa shrinks and embarks on a series of surprising cures.

Jason's naughty cousin comes to stay and is made to change his ways by the powers of the shrinking cap.

Grandpa's childhood friend Granddad Gilbert comes to visit with his granddaughter Martha. Unfortunately, Gilbert has forgotten how to have fun so Grandpa sets out to remind him.

Mr Mentor the Inventor asks Dad to look after his Custard Puff Plopper, but the invention is not behaving itself! Grandpa is sure he can fix it - if only he can get inside.

Mr Mentor the Inventor has invented some Brillioso Bicycle Bells. Mr Liker Biker rushes to Dad's Bike Shop and starts trying them all out. How can Grandpa get him to leave Dad in peace?

When Mum leaves Jason and Grandpa in charge of her newly grown 'odd' vegetables who should arrive but Great Aunt Loretta? She wants to invent a stew for Mr Mentor but Grandpa is sure the vegetables don't want to be cooked.

When Floyd has a little accident in the garden, Grandpa suspects he is just pretending to be hurt. Grandpa wants to catch Floyd out - he just needs to find a way to make him run...

Jemima is looking forward to looking after a little boy called Shanay but when he arrives he's far too shy to play with anything. Will Grandpa and Jason together find a way to cure Shanay of his shyness?

Jason and Jemima are putting on a Captain Dumbletwit play. All is going well until Floyd turns up and takes over. Disaster strikes - but Grandpa is determined that the show must go on!

New girl at school Tiffany Jayne Grottington Pump comes round to play with Jemima. But Tiffany wants everything her own way. Grandpa puts on his shrinking cap and decides to teach her a lesson.

Bubbles the babysitter has a new kitten which she brings round to show to the Mason family. Unfortunately Floyd turns up and tries to make Bubbles jump. Before long Floyd gets a taste of his own medicine!

When Jason goes to the toyshop to choose a birthday present for his friend Dora, Grandpa can't resist shrinking and coming along too. But who should arrive in the shop? Dora's Aunt, the formidable Lady Prigsbottom!

Mr Liker Biker is looking after the Bike Shop when a very important customer turns up. Speedy Edie's shopping style sends Mr Liker Biker into a spin but Grandpa is sure he can help out!

Jason's cousin Max comes to visit Grandpa. Together they make a model caveman. When Mr Cave Man meets with an accident Grandpa has no choice but to step in and save the day.

Jason and Jemima go to Miss Smiley's Fun Kitchen club to learn how to cook some of her recipes. Floyd is also in the class and is soon up to mischief. Little does he know that Grandpa is keeping an eye on him!

Cousin Alvin has gone all sporty. He makes the Masons play lots of games and is desperate to beat them at everything, especially Table Football. Grandpa sets out to turn Alvin into a good loser.

The man in the beach hut opposite wants to be a real pirate. So when Horatio Heave Ho decides to dig up Sunnysands beach in search of treasure Grandpa comes to the rescue.

Jason and Jemima go to Mr Whoops' toyshop to choose his Toy of the Week. But Floyd turns up and starts teasing Jemima who has picked up a cute little puppet. Grandpa rushes to Jemima's aid!

When Mr Whoops hurts his back picking up litter on the beach Grandpa decides that he needs a Litter Picker and who better to invent one than Mr Mentor. But a Litter Picker will need a bit of Grandpa's magic to work!

Mum is making everyone fancy dress costumes, but Great Aunt Loretta decides she needs some help. Mrs Maridadi the Dressmaker turns up and immediately has designs on Grandpa's Shrinking Cap.

Mr Whoops has bought a musical box for Miss Smiley and he's even made up a song to sing to her. But he keeps having little accidents with the musical box key. Good job Grandpa can shrink and get into tiny places!

Mum leaves Great Aunt Loretta in charge of her friend's goat, Mr Scoffbucket with disastrous results. When all Grandpa's plans to help fail he has to fly off to get help from a friend.

Bubble the babysitter has come round to teach everyone how to Flamenco dance because Miss Smiley is holding a "dancing tea!" But Great Aunt Loretta arrives and tries to take over.

Great Aunt Loretta has decided to make a clock for Mr Mentor's clock competition. Grandpa is keen that she should win because the prize is a holdiay! But her clock is a big disaster - until, that is, Grandpa steps in.

Mr Whoops wants a dog and Mum suggests that he tries looking after Wulfy for a day. Grandpa shrinks and goes to help out. But Wulfy ends up looking after Mr Whoops, instead of the other way round.

When a big cruise ship breaks down in Sunnysands, Mum invites the Captain to stay. He insists that they all perform various exhausting tasks every hour. But Grandpa has a brilliant plan to get rid of the bossy Captain.

Great Aunt Loretta is planning an invention with Mr Mentor and Grandpa decides to help.

Grandpa uses his shrinking cap to give Great Aunt Loretta a magical Christmas

Dad sorts out the attic and finds Grandpa's old piggy bank. He gives it to Mr Mentor the Inventor who discovers to his delight that this is no ordinary pig!

Bubbles the Babysitter has to handle some surprise visitors who want to buy the Mason's house! Grandpa decides they must be stopped.

The family is taking part in a singing concert at Miss Smiley's Cafe. Opera singer Madame Vibrato tries to help everyone make the music come alive. And sure enough, it does!

Lenora the Explorer comes to Sunnysands in search of the Blue Big Beaked Bonglebird and she won't leave until she finds it. Grandpa realises he'll have to help out.

Mum's latest hobby is making games for the whole family to play. When Great Aunt Loretta starts cheating, little Max doesn't like it. So Grandpa plays a few tricks of his own.

Cousin Alvin is looking after the toyshop for Mr Whoops and claims he doesn't need any help. But Grandpa knows better!

Jason has chicken pox and has to miss Mr Mentor's Inventing Club. Grandpa goes to help Jemima, only to find that Floyd wants to do some inventing too.

Great Aunt Loretta has invited a celebrity chef to the house to try some of her ghastly recipes. As things start to go wrong, Grandpa cooks up some magic to save the day.