It is the late 1990s. Former legionnaire Kurtis Trent now operates as a freelance mercenary. His specialism: the supernatural. Following a series of mysterious deaths after the discovery of a medieval shrine deep beneath a Welsh mine, Kurtis has been hired to find whatever otherworldly force is wreaking havoc, and take care of it. Little does he know that what he is about to stumble upon will lead him down a dangerous path, one of ancient cults and arcane knowledge, that will bring him face-to-face with demons from his own past, and ultimately, into a battle for the very survival of mankind...