A devastating storm uncovers a mystery from the past and sets Kolo and the Mighty Mangoes on an adventure to find the legendary Capra Cave. At the same time, strangers arrive at Mango Park raising concern and suspicion, and Kolo faces both revelations from his past and uncertainty about his future. What secrets and treasures does Capra Cave hold? Is it even real? And if it is, is it really guarded by the dreaded...