The first episode sees Kate Humble retraces the steps of fifteenth century explorers as she heads for India and Sri Lanka, the birthplaces of pepper and cinnamon. On India’s spice coast, she tells the story of pepper, the most consumed spice in the world. She does the pepper dance to shake the berries from their stalks and meets farmers fighting a disease that is destroying crops.

In Sri Lanka, the story moves to cinnamon and she learns how the spice is harvested and cinnamon quills are made. She also witnesses the negotiations of local farmers trying to sell the crops they rely on to make their living.