With a mysterious Cloud spreading across the land making the country and its people sick, two groups of Kids join forces with a mysterious unspeaking girl to try to save the world. As their journey begins a pair of mystical Nannas tell the Kids they need to collect eight special stones and a key and a strange pedlar gifts them a compass to try and help them find their way to wherever it is they need to go.

The Kids encounter a strange Man who has been chased up a tree by a tiny horse and refuses to come down until it is gone. Knowing that the Man has important information about the Cloud for them the Kids have to find a way to get him down. When they do the Man tells them that inside the Cloud are the Takers, real bad fellas, and if they want to stop them they're going to need to get to the Thalu, a sacred place of great power, before the Takers do.

When Hudson, Em, Vinka, Noodles and Lali find themselves trapped in a strange schoolhouse presided over by an ancient Principal it falls on Samara and Keile to try and rescue them. With the Cloud bearing down and time running out they manage to do just that - and find one of the special stones and perform an act of kindness to the Principal along the way.