It begins as the world's highest major river. It thunders through the planet's biggest gorge and flows past Asia's biodiversity hotspots, teeming with wildlife. United with the Ganges, it forms the world's greatest river delta. As it passes through each of the Earth's climate zones, the Sky River becomes a motor for the Monsoon that determines a third of the world's weather and dominates the lives of more than a billion people. This groundbreaking documentary explores the entire length of the river whose Hindu name - Brahmaputra - means “Son of Creation”.