Inquisitive monster Messy, voiced by Adam Buxton, has adventures with his best friends Zoe and Felix in the colourful world of OKIDO.

Working with Squint/Opera the concept was developed and re-imagined as a 52 part children's show combining live action footage with 3D renderings of Messy, his friends and the world of OKIDO.

He travels to OKIDO to discover the answers with the help of his friends Zoe & Felix and science trio Zim, Zam & Zoom who all have specific abilities which help them in their adventures.

Zoe is very smart and sensible, she hates being late and getting lost but has a passion for gadgets and gizmos, her favourite is her communications watch which she can use to call Zim, Zam & Zoom.

Felix (Shelley Longworth) is one of Messy's best friends who lives in OKIDO with his sister Zoe.

Zim (Rob Rackstraw) is a yellow talking computer with a white screen who knows a lot about science.

Zam (Kate Harbour) is a triangle-shaped engineer who is brilliant at fixing things; she also works in the ZZZ Tower.