Pat and the other parents decide to brighten up the school by painting a rainbow on the playground wall. Meera teaches them a special song to remember the colours of the rainbow. The children, meanwhile, are following rainbows to find the pot of gold at the end. Meera and Charlie decide that to get the fairy gold you have to tidy up wherever you are, whilst Julian and Bill just want to be treasure hunters. They go from place to place tidying up as they go. They eventually end up back at the school where they see the big rainbow mural and a pot of gold cupcakes at one end. They've found gold at the end of the rainbow after all.