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. 

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.