

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.

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?!
Aired: 11/10/2025
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!
Aired: 11/11/2025
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!
Aired: 11/12/2025
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?
Aired: 11/13/2025
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!
Aired: 11/14/2025
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!
Aired: 11/17/2025
Grumblestunk is getting competitive during 'Porthole In Bloom', but so are the local robins! Why are the red-chested birds turning on each other?
Aired: 11/18/2025
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?
Aired: 11/19/2025
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?
Aired: 11/20/2025
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!
Aired: 11/21/2025
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!
Aired: 2/16/2026
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...
Aired: 2/17/2026
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!
Aired: 2/18/2026
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!
Aired: 2/19/2026
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...
Aired: 2/20/2026
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!
Aired: 2/23/2026
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?
Aired: 2/24/2026Stan spots a swift and spies a mystery - why don't they ever land?
Aired: 2/25/2026Stan and Gran find a mysterious old carved piece of wood while they're beachcombing.
Aired: 2/26/2026Cove beach is covered in a swarm of starfish! But everything is not as it seems!
Aired: 2/27/2026Stan finds a special star stone which Grandad believes will bring him luck - and it does!
Aired: 3/2/2026Grandad puts caterpillars in a box for rehoming. Then Stan gets a surprise when he checks.
Aired: 3/3/2026Stan keeps hearing the tune of an ice cream van but it's not there!
Aired: 3/4/2026Stan is intrigued when he spots strange lights in the night sky.
Aired: 3/5/2026A fish has gone missing from Grandad's pond.
Aired: 3/6/2026Sign in to share your thoughts with the community.