During the school summer break, nine-year-old Elizabeth joins her family in the rainforest where they live with the Pemón tribe. When, after an accident, Mum needs to fly Dad to a hospital, Elizabeth must look after her three-year-old brother Leo. However, instead of minding her brother, she gets lost in her sketchbook. When Elisabeth finally looks up, she discovers that Leo has disappeared, and all signs suggest he wandered into the jungle. Now she must trade her books for bravery not only to find Leo, but also to rescue a mystical furry creature from captivity and return it to its family at the legendary Tepui mountain, all before their parents come back home.