Joanna Lumley follows the legendary spice trail to discover the rich tapestry of flavours and cultures which have shaped our world. In this episode, Joanna returns to her birthplace, India, in search of a kitchen cupboard staple once known as ‘black gold'. Starting in the majestic ancient city of Hampi, she's invited to a dazzling Hindu festival by a local rock climber. Onwards to the lush backwaters of Kerala where she meets a great grandmother who teaches the oldest martial art in the world and spends the night in a magical houseboat inspired by the old spice traders.