In the majestic mountains of North Wales, retired MI5 agent Huw Cecil is reluctantly drawn back into a world of espionage and murder. While visiting his childhood home of Llangollen, Cecil becomes embroiled in a dangerous mission to obtain top-secret information that could lead to the total collapse of the NATO Alliance. But when his Russian contact is brutally killed, Huw knows that he is the next target. In a deadly game of cat and mouse, with no one left to trust, Cecil enlists the help of Lottie Williams-Parry, a local woman who is struggling to overcome her own dark secrets, and together they take on dark forces and evil assassins in a bid to outwit their enemies and expose the shocking truth...