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.
Jason and Grandpa go to the beach and build a beautiful castle for the Sunnysands Sandcastle Competition.
Mum is going to take a family photo and everyone needs to look their best. Great Aunt Loretta calls Miss Snip the dog groomer to smarten up Beowulf, but Grandpa is having none of it.
Jason wants Grandpa to come and watch him perform at Miss Smiley's summer show. But Grandpa is not well and Mum has told him to stay at home. Grandpa has to decide whether to follow Mum's advice, or find a way to help Jason through his special song.
Mr Whoops invites Jason, Jemima and their friends to a day out on the beach. Grandpa puts on his Shrinking Cap and tries to join in the fun. Mr Whoops has lots of little accidents and everything goes wrong. Grandpa and Jason team up to save the day.
Accident-prone Mr Whoops looks after the cafe while Miss Smiley is away. Grandpa shrinks and flies off to help out just as a rather difficult customer, Lady Prigsbottom, arrives. Grandpa tries to help her see the funny side of Mr Whoops's slapstick antics.
Mum is looking after a friend's baby and Grandpa accidentally wakes him up. When baby Boris won't stop crying, Grandpa decides he needs a new toy to play with, so he puts on his shrinking cap.
Great Aunt Loretta decides the garden needs tidying up and calls for Mr Hackit the gardener. Grandpa and Jason like the garden just as it is, and so Mr Hackit must be stopped before it is too late.
Miss Smiley takes Jason and spoilt boy-next-door Troy to Mr Whoops's toy shop to buy a treat. Grandpa wants to teach Troy some manners so he shrinks and hides in Jason's pocket. Let loose in the shop, Grandpa puts his daring plan into action.
The delightful Bubbles the babysitter arrives to take care of Jason and his friend Josh. Everyone is having a great time until spoilt boy-next-door Troy turns up and starts causing trouble for Bubbles.
It is Shake Up and Shape Up week in Sunnysands, and everyone is exercising. Accident-prone Mr Whoops decides to buy a bike. Grandpa thinks this is a terrible idea and sets out to persuade Mr Whoops that there are other ways to get fit.
Jemima has a birthday party, with food, games and a magic show from the amazing Mr Marvelloso. Unfortunately, the magician turns out to be not so marvelloso and upsets the birthday girl. Time for a bit of Grandpa magic instead.
Mum is learning to play the trumpet and her practising is rather painful on the ears. So when she is asked to perform at Miss Smiley's cafe for the Young at Heart Club, Grandpa realises she is going to need some help.
Great Aunt Loretta feels ill and it looks like she will not make it to Rick the Rocking Raver's concert. Determined to get her out of the house, Grandpa shrinks and embarks on a series of surprising cures.
Jason's cousin Alvin has come to stay. He has turned into a terrible teenager, spending all his time either sleeping or eating Grandpa's sweets. Grandpa puts on his Shrinking Cap and attempts to change the boy's ways. Alvin cannot believe his eyes.
Dad gives Mum a beautiful necklace for their wedding anniversary but she loses it. Grandpa needs to shrink so he can find it for her, but Great Aunt Loretta has decided it is time he got rid of that tatty old 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.
New series. The Mason family move to a windmill and open a small hotel. Meanwhile, Jason's cousins make a surprise discovery about their grandfather.
The circus comes to Sunnysands, and Elsie becomes excited when a clown called Ravioli arrives at the mill, hoping to audition for the show.
Belinda-Lucinda is determined to spoil everyone's fun, so Grandpa disguises himself as the Easter Bunny to talk some sense into her.
Josh and Elsie are invited onto Bob's boat for an Aussie-inspired afternoon. Grandpa decides to come along too, but is soon getting into scrapes.
Auntie Jules looks after her friend Mrs Goodchild's little boy, Teddy, and there is trouble at bedtime. Grandpa shrinks to save the day.
Grandpa and the children help Mr Yomper Stomper take a photograph of a camera-shy giant woolly carpet caterpillar.
A celebrity chef returns to Sunnysands and plans to make giant cake of the town, and Mr Whoops gets into bother while trying to help.
A strange guest of the Mill, Mr Munchmould, comes up with an alarming plan that involves his love of cheese.
Grandpa and Elsie make space spiders for their Captain Dumbletwit puppet play, but it all proves too much for Great Aunt Loretta.
Mr Mentor's new invention, The Wonderbubble Weather Watcher, reads that it is the perfect weather for a boat trip - but Grandpa is not so sure.
A ballroom dancing couple stay at the Mill and are given an unusual breakfast experience by Great Aunt Loretta.
Grandpa encourages Belinda-Lucinda to join in the history day when he thinks her bad attitude might be spoiling everyone's fun.
It is a hot, sunny day and children from the Sunnysands summer camp visit the mill on the marsh with their talkative tour leader Wendy Waffle.
Mr Mentor the Inventor plans an open day at the Lighthouse, but he falls ill.
Mr Callminder takes his children to the toy shop. Unfortunately, someone else is serving.
Josh and Elsie call on Captain Dumbletwit's help when things start to go wrong at Mr Whoops's party for Troublesome Terrace.
Mr Whoops is looking after Bob's boat while he is away, and asks Josh to help him clean it before he returns home - but Great Aunt Loretta wants to help too.
Wulfy has a day at the beach, and Lady Prigsbottom sneakily buries his squeaky sausage in the sand - but grandpa sees her.
Mr Mentor the Inventor has a new pupil called Billy Bentice, but he soon needs a helping hand.
Miss Smiley decides to make some changes in the kitchen, which she is convinced are for the better. However, Grandpa is not so sure.
Mr Mentor creates a new invention, but is unsure what it can be used for, until a mother Bonglebird lays her eggs in it.
The Mill on the Marsh has a new guest who is very worried about catching germs, so grandpa tries to put her fears at rest.
Mr Yomper Stomper announces he will be offering donkey rides to children on Sunnysands Beach, and Grandpa is disappointed when Auntie Jules says he cannot have a go. Elise sits on for a ride but the animal refuses to budge - prompting Grandpa to put on his shrinking cap and hide in the donkey's flowery bonnet so he can encourage the donkey to start moving again.
Mr Whoops' wacky sister Wanda looks after the toy shop. Grandpa foresees trouble and flies in to help.
Brenda Balderdash and her long-suffering husband Bernard arrange to visit rocky Bongle Island - but mistakenly take Bob's boat out to sea. So Grandpa, who they are unaware is also on board, employs various methods to persuade them to turn back to the harbour.
Great Aunt Loretta tries to sell some unwanted items, and needs some help from Grandpa to persuade an antiques collector to buy her bizarre items.
Mr Whoops has an accident and breaks his glasses, and Great Aunt Loretta blames Wulfy and puts him outside.
Mr Mentor's latest invention causes chaos, but Grandpa thinks of a use for it.
Lady Prigsbottom stays at the Mill on the Marsh with all her valuables in her possession. When they start going missing, Grandpa turns detective.
Grandpa is very excited when his all-time favourite song and dance man Charlie Cheekster makes a return visit to Sunnysands, but the entertainer just feels old and past it - not very cheery at all. Auntie Jules, Uncle CJ, Jason and Jemima try to cheer him up by singing tunes that made him famous, and Elsie and Josh perform a puppet - but when their efforts fail, Grandpa takes on the challenge by shrinking and dressing up as a Charlie Cheekster doll, which leaves his hero enchanted.
A balloon artist runs out of materials while preparing for an event, and things gets worse when Mr Whoops breaks her pump.
Bertie Beep the ventriloquist and his sheep Walter come to stay, and are excited about performing at Miss Smiley's cafe later in the day.
Pop star Bella stays at the Mill to get away from the press, and it is up to grandpa to make sure she is not hassled.
Miss Snip longs for a doggy of her own, so Mr Mentor embarks on a new invention. Making it work, however, proves easier said than done.
Mr Whoops and Mr Mentor are planning a surprise for the children. The surprise involves a Punch and Judy booth as well other puppets.
Josh goes on a trip with Mr Yomper Stomper.
Mr Yomper Stomper shows Josh and Grandpa his new hiking bear.
Bob's Australian Uncle Vincent has made a visit to Sunnysands.
Josh has a friend William who just can't stop whizzing around.
A hotel inspector pays a visit to the Mill on the Marsh.
Everyone decides to dress like Dumbletwit's style.
Jemima invites a famous face to the opening of Sunnysands Fete.
Mr Mentor has invented a machine to find treasures.
Nattie Scribbler comes to the Mill looking for new ideas for her next story.
Jemima is doing a fashion-design course and has organised a fashion show at Miss Smiley's Cafe.
Grandpa, Josh and Jason are constructing a model-dinosaur kit when an American visitor arrives with a secret plan for the future of the marsh.
Grandpa thinks that Christmas is a magical time and everyone agrees. Mum is even trying to write a song about the Magic of Christmas. But Great Aunt Loretta declares that all this talk of 'magic' is silly. So Grandpa decides to use a bit of magic of his own to prove his point. Out comes the shrinking cap. While the family makes their usual Christmas Eve tour of Sunnysands, Grandpa puts his plans into action. He makes a wreath ting-a-ling; a pudding sing; and even flies through the sky on a miniature sleigh. But Loretta finds a logical explanation for all these outlandish events. Finally Grandpa has to resort to the most magical thing of all - the fairy on top of the tree. Great Aunt Loretta gets sprinkled with a bit of Christmas Magic just in time for everyone to sing Mum's Christmas song.
