The Ganges is like no other river on Earth. It brings life to hundreds of millions of people across India. For a billion Hindus, it's the immortal Mother Goddess who will wash away a lifetime of sins.

But India is changing, taking its place as one of the world's great superpowers and the future of the Ganges hangs in the balance.

In this ambitious, entertaining and illuminating three-part series, Sue Perkins goes on an extraordinary journey, spanning over 1,500 miles, from the Ganges source high in the Himalayas to the Bay of Bengal. She travels through some of the most extraordinary, chaotic and exciting places on earth exploring the lives and landscapes of modern India at this crucial point in its history. For the story of the Ganges is the story of modern India.