While investigating a toxic outbreak in the Caribbean Sea that may ultimately threaten the United States, Pitt unwittingly becomes involved in something even more dangerous -- a post-Castro power struggle for the control of Cuba. Meanwhile, Pitt's children, marine engineer Dirk and oceanographer Summer, are on an investigation of their own, chasing an Aztec stone that may reveal the whereabouts of a vast historical Aztec treasure. The problem is,...

In 1959 Tibet, a Buddhist artifact of immense importance was seemingly lost to history in the turmoil of the Communist takeover. But when National Underwater and Marine Agency Director, Dirk Pitt, discovers a forgotten plane crash in the Philippine Sea over 60 years later, new clues emerge to its hidden existence. But Pitt and his compatriot Al Giordino have larger worries when they are ordered to recover a failed hypersonic missile from Luzon Strait....