DNA Journey: Sam Thompson and Marvin Humes

Former Made in Chelsea star Sam Thompson and singer-turned-presenter Marvin Humes trace their ancestry. Embarrassed by his full name, Sam de Courcy Thompson, and the family signet ring, Sam is clueless about his family history and terrified of what he might uncover while Marvin is determined to learn more about his deep roots in Jamaica. Marvin's grandparents were born over there before they moved to the UK as part of the Windrush generation