S4 E1 • A Grandpa Made of Magic

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.

S4 E2 • Roly Poly Ravioli

The circus comes to Sunnysands, and Elsie becomes excited when a clown called Ravioli arrives at the mill, hoping to audition for the show.

S4 E3 • Miss Smiley's Springtime Make and Do Day

Belinda-Lucinda is determined to spoil everyone's fun, so Grandpa disguises himself as the Easter Bunny to talk some sense into her.

S4 E4 • An Aussie Afternoon with Bob

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.

S4 E5 • Squeak! Squeak! Mr Squeak!

Auntie Jules looks after her friend Mrs Goodchild's little boy, Teddy, and there is trouble at bedtime. Grandpa shrinks to save the day.

S4 E6 • A Day in Woolly Wonderland

Grandpa and the children help Mr Yomper Stomper take a photograph of a camera-shy giant woolly carpet caterpillar.

S4 E7 • The Great Big Sunnysands Cake Bake

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.

S4 E8 • Mr Munchmould's Cheesy Business

A strange guest of the Mill, Mr Munchmould, comes up with an alarming plan that involves his love of cheese.

S4 E9 • There Came a Big Spider

Grandpa and Elsie make space spiders for their Captain Dumbletwit puppet play, but it all proves too much for Great Aunt Loretta.

S4 E10 • The Wonderbubble Weather

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.

S4 E11 • Dancing with Delight

A ballroom dancing couple stay at the Mill and are given an unusual breakfast experience by Great Aunt Loretta.

S4 E12 • Mistress Smiley's Medieval Fairground Fun

Grandpa encourages Belinda-Lucinda to join in the history day when he thinks her bad attitude might be spoiling everyone's fun.

S4 E13 • Waffling at the Windmill

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.

S4 E14 • A Day of Spectacular Surprises

Mr Mentor the Inventor plans an open day at the Lighthouse, but he falls ill.

S4 E15 • The Day the Callminders Called on Mr Whoops

Mr Callminder takes his children to the toy shop. Unfortunately, someone else is serving.

S4 E16 • A Good Old-Fashioned Party

Josh and Elsie call on Captain Dumbletwit's help when things start to go wrong at Mr Whoops's party for Troublesome Terrace.

S4 E17 • A Cleaning Job for our Friend Bob

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.

S4 E18 • Wulfy the Wonderdog

Wulfy has a day at the beach, and Lady Prigsbottom sneakily buries his squeaky sausage in the sand - but grandpa sees her.

S4 E19 • Billy Bentice the Apprentice

Mr Mentor the Inventor has a new pupil called Billy Bentice, but he soon needs a helping hand.

S4 E20 • Changes for the Better

Miss Smiley decides to make some changes in the kitchen, which she is convinced are for the better. However, Grandpa is not so sure.

S4 E21 • Mr Greator Is Up To No Good

S4 E22 • Best Behaviour For Barnaby

S4 E23 • Souvenirs Of Sunnysands

S4 E24 • Things That Go Bump On A Boat

S4 E25 • A Customer In A Fluster

S4 E26 • A Mix Up At The Mill