"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, that...

When a key element of a new and and powerful attack submarine goes missing and ships begin disappearing in mid-ocean, NUMA director Dirk Pitt and his team embark on an international chase to discover the truth.