In the final episode, Mishal Husain explores the dramatic last years of Gandhi's life, which culminated in his death by an assassin's bullet. She gets to the bottom of an enduring mystery - why is Gandhi revered as Father of the Nation, when India turned its back on Gandhi's blueprint for the country?Mishal retraces Gandhi's visit to England in 1931 and uncovers evidence that Gandhi may have unwittingly contributed to the eventual partition of India. Newsreel footage from the time captures Gandhi meeting the people of Lancashire and London's East End, and Tony Benn recalls meeting him as a six-year-old boy. Sixteen years later India is free, but by then Gandhi is a broken man: sidelined from the centre of power and devastated by partition and the horrific violence that independence brings. But it is Gandhi's darkest hour that finally brings his greatest triumph.