 An emerald, with vital U.S. security information attached and hidden on it, has fallen into the hands of an arms dealer. What s more, a Soviet Bloc agent is determined to secure the emerald. Both will be on a cruise ship Phelps and the IMF must both get the emerald and neutralize the opposition agent. Phelps  plan involves a high stakes poker game utilizing Barney s technology and Rollin s sleight of hand. But that s only the beginning.