The romantic appearance of castles across Britain belies their turbulent history. Their walls are littered with the secrets of battles, sieges, intrigue and murder. Hosted by historian and author Dan Jones, SECRETS OF GREAT BRITISH CASTLES takes you behind the scenes, and, through dramatic stories and insightful interviews, unravels the tales of the iconic fortifications and strongholds at the very core of British history. Filmed in stunning locations in England, Scotland, Wales and Northern Ireland, each show peels back layers of incredible history. From the foundation onwards, we discover notorious inhabitants, infamous battles and the local communities that have shaped each fortress to stand as an iconic structure today. With a compelling narrative and strong production values boosted by computer graphics, aerial footage and dramatic reconstructions, this is a new and important living history series that will inform, educate and entertain television audiences across the world.