When Patty O'Donnell married her Irish sweetheart and moved from America to her husband's small home town on the Irish seacoast, the most dangerous things she had to deal with were the half-ton racehorses in her father-in-law's stables. But when she and her husband return from a late night out to find their house being searched, she discovers there are far worse things lurking in her bucolic surroundings than temperamental Thoroughbreds.
The teenage son of a late family friend brings proof of a long forgotten debt owed by the O'Donnells, part of a cargo lost in a shipwreck over a century and a half ago. He wants the cargo salvaged, and quickly, so he can help his mother free herself from her abusive second husband. The O'Donnells are willing, but the search and salvage mission puts them square in the sights of modern-day pirates, who want the salvage for themselves.
Suddenly, Patty finds herself hunted and in a fight for her life, where yielding to panic means a swift and ugly death.