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Where to watch
Not available to stream in US
Synopsis
Follow the mystery-busting adventures of 7-year-old Stan and his 71-year-old Gran, as together they investigate the mysterious goings-on in the fictional coastal town of Porthole.
Themes
Episodes
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- E1 Roaming GnomesNext upNov 10, 2025 · 11 min
Synopsis

Grandad's gnomes go missing and Stan's mystery deepens when he finds a tiny human handprint! The gnomes can't really have come to life, can they?!
- E2 The Wizard's WhistleNov 11, 2025 · 11 min
Synopsis

Melanie won't go to her favourite beach because of a strange sound known as The Wizard's Whistle! Is it a bird? Is it a kettle? Stan and Gran investigate!
- E3 Flight! Camera! Action!Nov 12, 2025 · 11 min
Synopsis

Grumblestunk's new speed camera catches Stan breaking the speed limit on his scooter, but he can't have been! Stan and Gran have to clear his name!
- E4 Laughter of the LakeNov 13, 2025 · 11 min
Synopsis

Stan and Gran get the giggles while spotting nature on the Ley, and the lake seems to be giggling back at them! Who is that laughing?
- E5 Shoe DunnitNov 14, 2025 · 11 min
Synopsis

Beach shoes have gone missing; some red hair is found at the scene and Grumblestunk is blaming Stan! Who really did it!? Stan and Gran spy a mystery!
- E6 Get a Wriggle OnNov 17, 2025 · 11 min
Synopsis

Sand! Sea! Worms! Stan and Gran must quickly discover where all these worms came from or Ellie's new clothes drying service will be ruined!
- E7 The Good, the Bird and the UglyNov 18, 2025 · 11 min
Synopsis

Grumblestunk is getting competitive during 'Porthole In Bloom', but so are the local robins! Why are the red-chested birds turning on each other?
- E8 Message in a BottleNov 19, 2025 · 11 min
Synopsis

Stan finds a treasure map in a bottle on the beach. Could it really lead to finding the lost treasure of dread pirate Abby Birdy?
- E9 Bats the Way I Like ItNov 20, 2025 · 11 min
Synopsis

The bats that nest in Grandad's shed each year are missing. Can Stan and Gran encourage these nocturnal creatures to return when they can't hear them?
- E10 Runaway RubbishNov 21, 2025 · 11 min
Synopsis

Stan and Gran are enjoying a beach clean, but the rubbish seems to have a mind of its own! When a yoghurt pot goes walk-about, Stan spies a mystery!
- E11 Beat of the DrumFeb 16, 2026 · 11 min
Synopsis

Stan, Grace and Brody form a band, but a mystery drummer joins in somewhere across town. Stan and Gran go on a hunt for their invisible bandmate!
- E12 Hole in the FenceFeb 17, 2026 · 11 min
Synopsis

Strange holes in garden fences are popping up all over Porthole and Stink has gone missing! Stan and Gran spy a mystery and decide to investigate...
- E13 Bananas at DawnFeb 18, 2026 · 11 min
Synopsis

Grumblestunk is sure she saw an enormous banana when she walked Stink on the beach early that morning and Stan and Gran spy a mystery - but no banana!
- E14 The Big SpotFeb 19, 2026 · 11 min
Synopsis

Grumblestunk is sure she saw an enormous banana when she walked Stink on the beach early that morning and Stan and Gran spy a mystery - but no banana!
- E15 The Tiny Tidy PeopleFeb 20, 2026 · 11 min
Synopsis

Strange holes in garden fences are popping up all over Porthole and Stink has gone missing! Stan and Gran spy a mystery and decide to investigate...
- E16 The Porthole PenguinFeb 23, 2026 · 11 min
Synopsis

When a penguin takes a shine to Stink's bed, and Grumblestunk decides to open a zoo, Brody is unimpressed, so Stan and Gran are forced to investigate!
- E17 The Sneaking SpottersFeb 24, 2026 · 11 min
Synopsis

Stan and his friends are at the Ley to do a nature survey but strangely, there doesn't seem to be anything to spot. Where has all the wildlife gone?
- E18 All Up in the AirFeb 25, 2026 · 11 min
Synopsis
Stan spots a swift and spies a mystery - why don't they ever land?
- E19 The Mystery MermaidFeb 26, 2026 · 11 min
Synopsis
Stan and Gran find a mysterious old carved piece of wood while they're beachcombing.
- E20 A Galaxy of StarfishFeb 27, 2026 · 11 min
Synopsis
Cove beach is covered in a swarm of starfish! But everything is not as it seems!
- E21 Lucky StarMar 2, 2026 · 11 min
Synopsis
Stan finds a special star stone which Grandad believes will bring him luck - and it does!
- E22 The Shut Shoe Box MysteryMar 3, 2026 · 11 min
Synopsis
Grandad puts caterpillars in a box for rehoming. Then Stan gets a surprise when he checks.
- E23 The Phantom Ice Cream VanMar 4, 2026 · 11 min
Synopsis
Stan keeps hearing the tune of an ice cream van but it's not there!
- E24 Lights in the NightMar 5, 2026 · 11 min
Synopsis
Stan is intrigued when he spots strange lights in the night sky.
- E25 Something Fishy Going OnMar 6, 2026 · 11 min
Synopsis
A fish has gone missing from Grandad's pond.
Cast & crew
Created by Jon Mason
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