Sue begins her journey at the source of the Ganges in the highest mountains on earth. It's been a tough year for the comedian following the death of her father and her journey has a profound effect.

Halfway along her journey, Sue immerses herself in the complex life of the ancient city of Varanasi - a place seen as the spiritual centre of India by millions of Hindus that also contains some of the most polluted stretches of the river.

Sue learns how Patna has become a centre of education, visits the miracle village of Daveshpura, catches up with some old friends in Kolkata and visits some of the islands at the mouth of the river and beyond.