Lucy Worsley travels to Russia to tell the extraordinary story of the dynasty that ruled the country for more than three centuries - the Romanovs.
A look at the early Romanovs, from 16-year-old Mikhail in 1613 to Peter the Great.
Lucy examines the reign of Catherine the Great and the conflict with Napoleonic France.
Lucy investigates how the family's grip on Russia unravelled in the years 1825-1918.