Noddy and the Rainbow Robber

S3, E22: Big Ears tells Noddy that the rainbow at the edge of the wood is what brings colour to Toy Town. The Goblins overhear him and steal the rainbow with their Rainbow Robber device, causing all the colours to disappear from Toy Town. Noddy and Tessie follow the multicoloured drips from the Rainbow Robber to the tree house of the Goblins - but can they retrieve the rainbow?