Messy is a friendly monster who helps school-aged children by examining science questions that help them to learn more about the world that they live in.
Messy, Felix, Zoe and Zoom go in search of a light that never goes out.
Mayor Oki and Geoffrey make a lot of noise in an election for the next mayor of OKIDO.
Snowden has lost his pine cone ears and he can't hear a thing!
Messy and his friends try to help a robot who has no sense of touch.
Messy and his friends go camping in OKIDO Forest and meet some nocturnal animals.
An amazing cave may contain the perfect material for OKIDO's most famous sculptor, Zinnie.
Zam tries out her new navigator, which the friends use to find Socktropolis.
A little turtle gets stranded on the beach in OKIDO.
When the sun mysteriously disappears, Messy zooms up to space to find out what's going on.
Messy's fur is all spikey and everything's getting stuck together!
Messy and his friends come up with a plan to help Nimby overcome his nerves.
Everyone in OKIDO wants to see the dolphins dance at Vivienne Volcano's island.
A spot of baking with Geoffrey goes awry when Messy gets the quantities wrong.
Strawberries, mayors and Zam's latest invention help Messy find out more about himself.
The friends go on a trip in the rocket to find out why OKIDO's sky has turned so red.
Sweet, Sicky Messy! Why are the bees upset about Mayor Oki's popular new perfume?
Rocky Mountain wants to visit the beach, so Messy and his friends come up with a plan.
Things go wrong when Messy and his friends help make the biggest birthday cake ever.
Things start to go a bit wrong when Zam invents a super-strong bubble machine.
Jealous of the new RoboCar and its super-fast speeds, Okidoodle tries to catch up with it.
Messy and Zam race each other at the OKIDO Oki-lympics.
Messy's Mega Power. When OKIDO's electricity runs out, can Messy find a way of powering an Oki-dokis concert?
How do pictures and cartoons get onto screens and TVs? OKIDO holds the answers.
Messy and his friends investigate the mysterious sound keeping everyone in OKIDO awake.
With OKIDO's trains halted by leaves on the line, can the mayor get to his lunch in time?
Zam invents a machine that makes it possible to enter other people's dreams.