At midnight on New Years Eve the S.S. Poseidon is struck by a 90′ tidal wave and is capsized. The Reverend Frank Scott leads nine Survivors; an elderly couple, Manny and Belle Rosen headed to Israel to see their grandson; A New York detective and his ex-prostitute wife, Mike and Linda Rogo on their second honeymoon to Italy; A young brother and sister, Robin and Susan Shelby going to meet their parents in Greece; A haberdasher James Martin; a pop singer Nonnie Parry, and a waiter from the ship Acres. They travel from the grand ballroom struggling through, steam, fire and rising water in the up-side-down ship to reach the bottom (the propeller shaft), now the top.

Volcanologist Harry Dalton and mayor Rachel Wando of Dante’s Peak try to convince the city council and the other volcanologists that the volcano right above Dante’s peak is indeed dangerous. People’s safety is being set against economical interests.

For reasons unknown, the earth’s inner core has stopped rotating, causing the planet’s electromagnetic field to rapidly deteriorate. Instantly, life around the globe begins to change dramatically. In Boston, 32 people with pacemakers, all within a 10-block radius, suddenly drop dead. In San Francisco, the Golden Gate Bridge collapses, sending hundreds of people plunging to their deaths. In London’s Trafalgar Square, flocks of pigeons lose their ability to navigate, flying into panicked crowds, slamming into windshields and causing drivers to lose control of their cars. And in Rome, as thousands of tourists watch helplessly, an electrical superstorm reduces the ancient Roman Colosseum to rubble. Scrambling to resolve the crisis, government and military officials call upon geophysicist Dr. Josh Keyes and a team of the world’s most gifted scientists to travel into the earth’s core in a subterranean craft piloted by “terranauts” Major Rebecca “Beck” Childs and Commander Robert Iverson. Their mission: Detonate a nuclear device that will reactivate the core and save the world from sure destruction.