Callum

Chloe wears glasses and a red football-style shirt; Callum wears a pale printed shirt. They sit at a wooden dining table with Grandad and colourful modelling materials.

Chloe wakes in the same pink bedroom. Callum arrives in blue patterned pyjamas, bounces on the bed, and meets Kellian at the wardrobe.

A sparkling effect changes the children's pyjamas into daytime clothing. Chloe retains glasses and wears a red shirt; Callum wears a pale printed shirt.

A brightly coloured motorcycle appears in the bedroom. Callum climbs on; it subsequently becomes a large green frog.

Kellian and the children vanish from the bedroom, appear outside the brick house, fly over the neighbourhood and waterways, and reach a wooded setting.

The trio explores a wood with deer, rabbits and a stream. The children examine a low woven-branch den.

Kellian stands in front of a towering fantasy tree structure; subsequent shots reveal spires, bridges and platforms amongst enormous trees.

The trio flies back and lands outside the brick house.

Chloe and Callum eat burgers and chips at the wooden dining table.

Grandma and Grandad watch a television news report about an alien spotted in Aldi. Chloe sees the report; Callum uses headphones and a tablet.

A red dragon joins the children by the patio doors, carries them through the countryside to a beach, and changes into Kellian on landing.

The trio paddles by the sea and watches a large sea creature or vessel emerge offshore; its exact identity needs closer verification.

Kellian and the children ride a blue roller coaster and dodgems. The dodgem cars travel out through streets and along the beach. A Jet2-branded aircraft passes low overhead.

The trio appears in the aircraft cockpit. The aircraft finishes on a residential street, with the children and Kellian still in the cockpit.

Kellian gestures in the bedroom but produces a green cloud. The children react; Callum wears a red number-7 shirt and Chloe a pale top with pink trousers and glasses.

The bedroom is shaken and objects fall; downstairs, Grandma and Grandad sit amongst fallen objects near the dining table.

Kellian talks with Chloe and Callum in the bedroom. Speech content must be checked separately.

Chloe and Callum see a Kelly Konka Chocolate Factory advertisement on the living-room television, including a golden ticket inside an ornate egg.

Grandma finds the egg. The children open it and uncover a golden ticket; Grandad plays with a tabletop train.

The children show Kellian the ticket. A winged green Kelly Konka steam locomotive appears above the house and they materialise in its cab.

The flying train carries Chloe and Callum through clouds into a landscape of giant sweets, chocolate-coloured waterways and industrial towers.

A purple alien host in a purple top hat and suit arrives on a flying carpet and carries the children into the Kelly Konka factory. The host’s identity should not be equated with Kellian solely from appearance.

The children explore a factory with copper pipework, production lines of large eggs, mushroom-like structures, clocks and a chocolate waterfall.

Chloe and Callum board a transparent spherical brass-framed flying machine. Callum holds its steering wheel as they tour inside and outside the factory.

The children splash in a chocolate-coloured pool with large brown fish.

The top-hatted host returns with the winged locomotive. The children board and the train flies away towards the sunset.

Grandma, Chloe and Callum visit a boating lake, feed ducks and use a playground. Other visible gags include a cow, a large man and a fish leaping from the lake.

Grandma takes a phone call beside the swings; intercut shots show Grandad on the phone in the living room.

Grandma and the children see Dan pass with the telephone box. They return home and gather with Grandad in the living room.

The children sit in the bedroom while Kellian, in his tracksuit, camps beside a small barbecue and a green tent near a lifting bridge. He gives a paper map to a stork-like bird.

Curtis joins the family and examines the map with Chloe and Callum at the wooden dining table.

Curtis drives Chloe and Callum in the BMW i8 across the lifting bridge to the tent.

Curtis and the children inspect the tent, lift a floor hatch and discover a long staircase descending underground.

Curtis, Chloe and Callum descend the marble stairway into a large mansion atrium with white marble, gold railings and a spiral staircase. Kellian greets them wearing his vest and striped shorts again.

Kellian and the children talk on blue sofas beside a circular central fireplace in the mansion.

Curtis, Kellian and the children regroup beside the pool. Curtis displays an enlarged muscular arm during their conversation.

Chloe and Callum investigate the noise. Chloe finds Kellian under the bed. Outside, a squirrel clings to Grandad as he runs away.

Grandad and the children dance in the room full of clocks. Kaylian and Kevlian arrive at the purple front door and knock.

Kellian and the children arrive in town by pink limousine, meet Curtis outside PureGym and walk to McDonald’s.

Callum orders at the counter; a visible till shows 1000 and the staff stack a tall trolley with food.

Kellian and the children enter Jeanine’s Crochets, a pastel-fronted shop with yarn-filled shelves, crochet displays and a central counter. Jeanine wears red tartan.

Jeanine hands the children small crocheted purple alien dolls. They leave carrying the dolls; Kellian reacts to their appearance.

The trio passes visible shop signs including Dan’s Teleporters, Greggs, Joel’s Star Wars and Grandma Doll House. Signs establish what is depicted, not legal ownership.

They enter Karl’s Kebabs. Karl wears dark glasses and a striped apron, eats a kebab behind the counter, then assembles very large portions for the children.

Kellian and the children see a poster for Steve’s 80s gaming. An elderly woman rides an ostrich through town with police behind her.

The trio visits Steve in a retro computer shop. He has a moustache and denim jacket. After Kellian casts magic, Steve appears as a block-shaped game character in a blue shirt.

Kellian and the children run, jump and bounce through residential streets. A caption identifies Kirk Sandall.

Kellian and the children see the spaceship overhead, run home, and reunite with Kaylian and Kevlian in the street. The alien family embrace. The Jet2 aircraft remains in the neighbourhood background.

BBQ Pig runs across the lawn and street. Grandad chases it while Chloe and Callum watch. Kellian walks with Kaylian and Kevlian outside the neighbouring house.

Kellian phones Chloe and Callum from the new toy bedroom. The children answer while sitting on a bed elsewhere. His disguised parents prepare to go out.

Chloe and Callum appear in the toy bedroom. Kellian shrinks Callum into a blue toy car; he drives the orange loops before returning to normal size.

Kellian and the children leave the toy bedroom, run downstairs and enter the back garden. Chloe addresses Kellian before he casts a purple spell.

All three are tiny among grass and leaves. Callum mounts a ladybird and rides it along the soil.

A tabby cat approaches. The tiny trio hide in a hollow at the base of a tree while the cat paws outside.

The trio encounter a large ant, worm, frog and rabbit at their reduced scale, shelter in a terracotta pipe, then rest on a stone.

A gull steals a sausage from the barbecue and carries it over the houses. A sausage lands beside the tiny trio, who eat from it.

The tiny trio explore worms, caterpillars, dew, pollen, a stag beetle, a dragonfly, a many-legged arthropod and a strawberry plant. The magnified surroundings reflect their small size.

They discover a gold-coloured coin with a portrait and lettering naming Victoria. Exact denomination is a dialogue claim requiring verification.

They pass an ant carrying bread, a wasp drinking from a drop, a woodlouse, a snail and a discarded can. The garden becomes dark and they encounter a moth.

Still tiny in the dark garden, Kellian phones Dan. Dan answers in his computer room. The episode ends with the size problem unresolved on screen.

Kellian, Chloe and Callum remain tiny in the moonlit garden. They pass a pink-dressed doll, enter a weathered dollhouse and encounter a spider outside its balcony.

Dan arrives outside the houses and phones Kellian. The tiny trio stand near the oversized sink inside the dollhouse.

Dan carries the tank to the garden dollhouse. The trio cross its cluttered interior and climb the stairs to the balcony; the tank is positioned outside below them.

The trio jump into the brown solution and swim through it, then grow larger and emerge beside Dan. Steam rises from the tank. They walk away at their restored size.

The children are back indoors in changed clothes: Chloe wears a black top with a pink 67 and pink trousers; Callum wears a blue top and grey trousers. Kellian begins a game of hide-and-seek.

Disguised Kevlian tries to hide inside the kitchen cupboards. Kellian searches the living room, then the kitchen. A green cloud appears behind Kellian, who runs out and falls; the children are behind the sofa.

Kevlian crawls into another cupboard and ends up upside down. Kellian finds him before regrouping with the children.

Callum counts in the kitchen. Chloe and Kellian hide in a laundry basket in the hall. Kevlian searches behind cushions and a lampshade before crawling underneath the sofa.

Kaylian, still dressed as Grandma, sits on the sofa with Kevlian trapped underneath it. Callum finds and eats chocolate in the kitchen. The ending leaves Chloe and Kellian’s last shown hiding place as the laundry basket.