Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
Philip Augustus and Richard the Lionheart join forces to fight on 'the crusade of kings' and free Saint John of Acre from the Muslim conquest. (Part 1 of 4)
Rhodes: the Ultimate Battle: The Ottomans launch an offensive against the island of Rhodes but the Hospitallers' military forces are already preparing the defence. (Part 2 of 4)
The Great Siege of Malta: The siege of Malta opposes the huge Muslim Ottoman army to the Christian stronghold controlled by only 1700 men. (Part 3 of 4)
Constantinople: the Emperor's Last Stand: In Constantinople, the eastern Christians are facing one of the best armies in the world: Mehmed II's Turkish army. (Part 4 of 4)