As Stuart Taylor explores the coral reefs and shipwrecks around Bahrain he discovers a 15th century ship and a fortune in pearls. This discovery becomes known to a drug smuggler who kidnaps Stuart's wife. In searching for Helen he finds a shipment of heroin and learns that the drugs are for a paedophile, an untouchable sheikh who has the power to make people disappear in the desert. Stuart has no defence against this merciless man until the unexpected intervention of two men who seek revenge and take the law into their own hands.