Cameras focus on the Constable's Dues, a 700-year-old tradition. In 2024, the spectacle is bigger than ever, with over 80 coordinated Royal Marine commandos, high speed boats racing along the River Thames, a Royal Navy helicopter fly past, and a Royal Marine marching band. Yeoman Gaoler Clive Towell has a special role to perform - challenging the Marine commandos at the Tower gate, a security protocol to decide who can enter the fortress