Messy accidentally drops his superstacked jam sandwich, but why did it fall down and not up? He goes to OKIDO and rockets up to the moon to find out.

Messy hears a bird singing outside but doesn't know what he's trying to say. Maybe he'll find the answer in OKIDO.

The sky is full of big grey rain clouds in the real world. Messy watches his sandcastle outside get washed away by the pouring rain. Why does it have to rain? He competes in the OKIDO flower competition and finds out why.

Messy wonders why his tasty green socks don't taste the same when he has a cold

Messy, Zoe and Felix travel to the land of balloons.

Why do some things float and some things sink? Pirate Captain Messy will find out in OKIDO.

Messy is having fun blowing loud notes through his musical horn instrument "PARP PARP!!" But whatever noise Messy is making someone or something is making it too. Messy goes in search of the copycat voice.

Why do we need to brush our teeth? When you need to now go to OKIDO.

Messy finds out about rainbows.

Messy wants to know where his caterpillar friends went.

Messy monster can't work out why his cart won't move. The wheels just won't go round like normal. Off he goes to OKIDO to find out why.

Messy monster is just about to take a bite out of his delicious green sock for breakfast but before he can... WHOOOSH! His sock has blown away! He goes to OKIDO to find out why the wind is so blowy!

Messy finds a very dusty sock underneath his bed but why does it make him teary? He goes to OKIDO to find out.

Messy wants to know how his goldfish friend can stay underwater for so long? He goes to OKIDO to find out.

Messy has a pair of yummy green socks waiting for him. He eats one but where is the second? In OKIDO he finds out.

Messy monster is having breakfast and sees little objects on the fridge, why don't they fall off? He goes to OKIDO to find out.

Messy's new friend is in a spot of hot bother. They go on an icy adventure to the south pole, the desert and mountains to help.

Messy can't wait for Christmas Day to arrive. He learns that everyone needs to get a good night's sleep, even Mother Christmas.

Messy joins his friends in OKIDO on a tiny adventure. They explore the electrical world of circuits to fix Zoe's communicator.

Hey, who turned out the lights? Messy goes to OKIDO and finds out electricity can lead to music, lights and disco dancing.

Messy and friends rocket into space but a mischievous Messy sends OKIDO's seasons into chaos. Time to fix this planet wobble.

Aliens on OKIDO telly? Skateboarders in the satellite?. Everything's upside down. It's up to Messy and his friends to fix it.

Messy has to save OKIDO from a falling comet before his bedtime. He sees that Mayor Oki still has his bath.

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.

Messy joins Zim and his friends on a mission inside a sandwich to photograph some atoms for Mayor Oki – Everyone say cheese.

Messy, Zoe and Felix have to get Lofty's heart pumping.

Messy and his friends are joined by a group of robots to build a bridge to reach Billy Barnacle. Stan tall puts it to the test.

Messy thinks smelly socks and cheesy feet are brie-lliant! But when it's Lofty's feet that smell, it's a giant problem...

Messy and friends are left feeling blue when the vacubots suck all the colour out of OKIDO! So they better get red-dy to fix it!

When the Cloudship malfunctions and soars off into Okido, it's up to Messy and friends to return it to its natural habitat!

Messy gets to fly Mayor Oki's plane, but this is no easy jet and he crash lands in a tree... Luckily, robots fly to the rescue!

Messy and his friends have animals to save and eruptions to stop in OKIDO when Vivienne Volcano gets a rumbly tummy! Oh deary!

In the real world Messy is bored of his dino-jigsaw! In OKIDO, his friends help him piece together a real prehistoric puzzle!

Mustard goes in search for help - Lofty has a broken finger! Messy and friends save the day and discover bones are amazing.

It's Mayor Oki's birthday picnic. Messy and friends get in trouble with Zam's shrinkasizer! Time to solve these OKIDO ant-ics!

Messy goes to OKIDO and helps his friends to mend Loopy Bridge but along the way Zim finds himself in a sticky situation!

Messy and friends go on a rollercoaster adventure and figure out why Stan tall is in such a spin!

When Messy breaks the lighthouse things get shady... But without a shadow of a doubt, he and his friends save the day!

Messy and friends visits Fluff the cloud's family, and things heat up in flash when her brother Nimby gets the lightnings!

Messy's thirsty for an adventure, so he goes to OKIDO to help his friends solve the mystery of the dried up Oasis!

Messy and friends must play the OKIDO concert! Music is instrumental, but then it's time for OKIDO to make some noise!

When Messy and his friends go camping with a robot who can do anything, there is a giant sized socksident!

Messy's tummy is rumbling and so is Lofty the giant's! Luckily the gang are hungry to solve this scientific mystery though…

When Messy and friends discover how to catapult heavy things with a lever, farmyard animal bathtime commences with a splash!

Lofty's giant sneezes go a long way, so Messy and his friends must help to wash OKIDO clean of all the bad germs flying around!

Messy and friends search explore the forest with Tweedy, but when her eyesight fails luckily Zim, Zam and Zoom can lens a hand!

It's summer in OKIDO, but Messy wants to chill out in the snow, so he's lucky when the snowflakes come out to play!

When Mayor Oki's pumpkins aren't big enough Messy and his friends muck in and save the day! With the help of some wiggly worms…

Messy helps his friends find Zoe's lost communicator, which has ended up in the recycling but luckily, Zim is magnetic!

Messy and friends enter a race in OKIDO and the various vehicles speed off! But who has the power to win the mystery prize?

Messy and friends go to the funfair, but when the shrinkasizer comes out, they end up in a giant mess with mini Mini!

Messy goes to OKIDO to play with Zim and Zam's new discovery! But will he and his friends get back from this adventure in time…

Messy, Felix, Zoe and Zoom go in search of a light that never goes out.

Zam invents a machine that makes it possible to go inside the dreams of other people.

It's the OKIDO circus today, and Messy is worried about performing his triple flip. Will his friends be able to help him conquer his tummy flutters before the audience arrives?

Messy's hiccups cause a landslide while he is out on a nature walk. Will he be able to find his way home? And will he ever stop hiccupping?

Messy has to deliver the giant pongberry to the Pongberry Pie Festival before it goes off and releases a terrible smell in OKIDO City!

Zim's weather balloons have gone missing and Mayor Oki's weather forecasts are completely wrong. Messy, Zoom and Zim must fly through the skies to track the balloons down.

Messy’s got pins and needles and needs Zim and Zam’s help. Will he be able to get through the crowd at the OKIDO musical statues competition without Mayor Oki spotting him?

After a button-pressing 'accident' at the Fab Food Factory, a giant popcorn is on the loose in OKIDO. Will Messy and Zoom be able to stop it before it flattens the city?

Messy borrows Zoe's umbrella, and it gets swept away by the rain. Messy and his friends go on a white-water adventure down the drain in search for it.

Messy can't remember where he left his favourite sock. He goes to OKIDO and learns how to jog his memory, but when the rollercoaster breaks down, will he be able to help Stan Tall remember where he left his screwdriver?

Messy goes to OKIDO to find out why vacuum cleaners are so noisy and inadvertently releases a huge swarm of Vacubot 2000s across OKIDO City!

Farmer Fuddle's chickens have escaped. Their feathers make Vivienne Volcano very itchy, so Messy has to find a way to scratch her itches and round up the chickens.

Messy wants to run further, but he keeps getting out of breath. Will he be able to take on the Great OKIDO Challenge and race to the finish line?

When Messy accidentally sets Farmer Fuddle's sheep loose, he must help round them up in time for their annual wool shearing. But will Messy be brave enough to get a fur cut of his own?

Everyone in OKIDO is feeling very tired. Messy tries to help by adding extra superbeans to Farmer Fuddle's new recipe, but now everyone has far too much energy! How can Messy help them burn it off so OKIDO City can go back to normal?

After accidentally causing a mini avalanche, Messy must help Lofty dig out the entrance to his cave so he can warm up again - brrr

Mayor Oki wants to dress to impress the visiting mayor by wearing a gemstone-encrusted chain. He needs Messy's help to work out how to make gemstones before she arrives.

Mayor Oki and Geoffrey get competitive. They each want their fizzy water to be OKIDO's one and only favourite. Messy tries to help them both get to the top spot, but things get very fizzy very quickly!

When Stan Tall starts to develop rust, it's up to Messy to help him get to Maker Mechanic. Will they make it in time?

It's the Great OKIDO Cake-Off! In his enthusiasm, Messy accidentally ruins everyone's cakes. Will he be able to follow the recipe and bake a cake in time for Gloria's eightieth birthday party?

Zim and Zam have discovered the lost city of Micro OKIDO. There is just one problem - it's on the exact spot that Mayor Oki wants to place his new statue. It's up to Messy to help save the city.

It's the Great OKIDO Sleepover, but there is a loud noise keeping Messy awake! With the help of Zoom, Messy must track down the noise to save the sleepover.

When Mayor Oki wants to build a new tower, Messy is keen to help. There is just one problem - all his towers fall over...

It's wash day in Okido. Messy travels with Zoe and Felix to the Okido launderette and learns just how much soap can be too much. Soon Okido is covered in bubbles and it's up to Messy to clean up.

A copycat space seed crash lands on Farmer Fuddles's farm, and Messy is keen to help. It soon grows into... Messy! Can there ever be such a thing as too much Messy? OKIDO is about to find out.

Messy accidentally removes the brakes from Mayor Oki's carnival float, but it turns out he really needs them. Will Messy be able to stop the runaway float?

It's the day of Mayor Oki's Ice Skate Skate-tacular. But there is too much ice, and it's stopping everyone from getting to the show! Messy must find a way to melt the ice and save the show.

Messy travels back to the start of the universe to find out where everything came from.