Gordon Buchanan continues his journey around the equator, witnessing the fight to preserve the Amazon rainforest. In Brazil, he joins an aerial police patrol hunting for illegal loggers, while a local tribe map their territory from the air in a bid to prevent its destruction. Crossing the Andes, Gordon sees how eyes in the sky keep tabs on Ecuador’s endangered condors and visits a reserve where new species are being discovered, high up in the canopy of a pristine patch of cloud forest.