Battle Castle brings to life mighty medieval fortifications and the sieges they resist: clashes that defy the limits of military technology, turn empires to dust, and transform mortals into legends. Follow host Dan Snow as he explores the military engineering behind these strongholds and the legendary battles that became testaments to their might. Dover: Prince Louis' key to England. Chateau Gaillard: Richard the Lionheart's masterpiece. And Crac des Chevaliers: the crown jewel of Crusader castles. Behind each of these structures lies a fascinating story. Battle Castle reveals the bloody history of these fortifications and the weapons designed to defeat them. Through dynamic location footage and immersive visual effects, the masterminds who built these castles and the brave warriors who attempted to bring them down are brought to life. Each episode will climax in the ultimate test of each castle's strength - an epic battle that will change the course of history.