Messy, a monster, explores science questions that children ask about the world around us. Messy finds a very dusty sock underneath his bed, but why does it make him teary? He goes to OKIDO to find out.Source: CBeebies
Series 1: 36. Spidermessy
Messy goes to OKIDO and helps his friends mend Loopy Bridge, but Zim finds himself in a sticky situation along the way!
Series 1: 35. Messy Antics
During Mayor Oki's birthday picnic, Messy and friends get in trouble with Zam's shrinkasizer! Time to solve these OKIDO antics!
Series 1: 34. Funny Bones
Lofty has a broken finger, so Mustard goes in search of help. Messy and friends save the day and discover that bones are amazing.
Series 1: 33. Fossil Puzzle
In the real world, Messy is bored of his dino-jigsaw! In OKIDO, his friends help him piece together a real prehistoric puzzle!
Series 1: 32. Vivienne Blows Her Top
Messy and his friends have animals to save and eruptions to stop in OKIDO when Vivienne Volcano gets a rumbly tummy! Oh dear!
Series 1: 31. Mayor Force One
Messy gets to fly Mayor Oki's plane, but he crash-lands it in a tree! Luckily, robots fly to the rescue.
Series 1: 30. Habitat
When the Cloudship malfunctions and soars off into OKIDO, it's up to Messy and friends to return it to its natural habitat!
Series 1: 29. Colours
Messy and friends are left feeling blue when the vacubots suck all the colour out of OKIDO!
Series 1: 28. Cheesy Feet
Messy thinks smelly socks and cheesy feet are brilliant! But when it's Lofty's feet that smell, it's a giant problem...
Series 1: 27. Building Bridges
Messy and his friends are joined by a group of robots when they build a bridge. Stan Tall puts it to the test.
Series 1: 12. Mr Kite Takes Flight
Messy, a monster, explores science questions that children ask about the world around us. Messy monster is just about to take a bite out of his delicious green sock for breakfas ...
Series 1: 14. Gills
Messy, a monster, explores science questions that children ask about the world around us. Messy wants to know how his goldfish friend can stay underwater for so long. He goes to ...
Series 2: 17. Messy Moves A Mountain
Rocky Mountain is feeling down in the dumps because he's never been to the beach, so Messy and his friends from OKIDO come up with a clever plan to cheer him up!
Series 1: 20. Planet Wobble
Messy and friends rocket into space, but a mischievous Messy sends OKIDO's seasons into chaos! Time to fix this planet wobble.
Series 1: 23. Bee Story
There's some funny 'buzzy-ness' going on in OKIDO. Where are all the bees? Messy and friends meet bee royalty and save the day!
Series 1: 39. A Case Of The Lightnings
Exploring science questions. Messy and friends visit Fluff the Cloud's family, and things heat up in flash when her brother Nimby gets the lightnings.
Series 1: 19. Messy Power
Hey, who turned out the lights? Messy goes to OKIDO and finds out electricity can lead to music, lights and disco dancing!
Series 1: 25. Big-hearted Messy
Messy and friends have a giant adventure. It's up to them to get Lofty's heart pumping and celebrate his birthday!