Perched high above the Welsh cliffs, this once spectacular Gothic castle fell from royal legacy to near ruin in just a few decades. After absentee ownership, squatters, and total asset stripping, one man is now fighting to bring it back from the brink. Great British Castle Rescue follows Rick Edwards as he ventures inside some of the UK’s most spectacular and endangered castles. From crumbling medieval towers to collapsing royal chambers, engineers and historians battle to stabilise these epic structures with help from National Lottery funding. Each rescue unlocks extraordinary stories of warrior kings, civil wars, brutal betrayals and forgotten lives. Across each episode, Rick meets heritage experts, engineers and stonemasons racing to save these buildings.