Urgently summoned from snowy France to tropical Thailand by Sam, his marine archaeologist daughter, Michael Scourie is thrust into a life-threatening situation as an unknown enemy seeks to destroy them and pillage the 16th Century wreck she has found. Nine years later in the Hautes Corbieres, the nightmare returns when the true mastermind is revealed and grandson Will kidnapped, forcing Michael & Sam to recover an ancient treasure trove. With the prospect of almost certain death upon completion of their task, they enter a battle of wits against a formidable evil.