Helen Castor concludes the docudrama telling the story of the woman who reigned England and Ireland for nine days in 1553. The historian looks at the final days of her reign, when she had been installed in the Tower of London, only for Mary Tudor's forces to assemble ready for battle. And when one of Jane's key's supporters defected to Mary's side, taking thousands of supporters, the balance tipped and the men who installed her on the throne abandoned her