In summer, The Tower of London is alive with activity. Beefeater-led tours are a daily duty, and new recruit Barney Barnett faces the challenge of memorising an 8000-word script on 1000 years of history. Will he pass his probation? Tower Governor Brigadier Andrew Jackson plans a unique event in the Tower's summer calendar - the Tudor Pull, a 25-mile river journey with 18 rowing boats carrying ceremonial objects. Historic Royal Palaces' Chief Curator Tracy Borman investigates the bond between Elizabeth I and Robert Dudley, while conservation work continues in the White Tower.