It's New Year's Eve and festivities have begun aboard the luxury cruise
Poseidon, at sea in the North Atlantic. One of the finest vessels of its kind,
Poseidon stands more than 20 stories tall, boasts 800 staterooms and 13
passenger decks. Tonight, many of the ship's guests have gathered to greet the
new year in style in the magnificent Main Ballroom. They raise champagne glasses
as Captain Michael Bradford (Andre Braugher) delivers a holiday toast and the
band (led by Fergie of the Black Eyed Peas) rolls into a version of Auld Lang
Syne. Meanwhile, on the bridge, the First Officer senses that something is
wrong. Scanning the horizon, he sees it -- a Rogue Wave; a monstrous
wall of water over one hundred feet high, bearing down on them with tremendous
speed. He tries to steer the ship away from maximum impact but it's too late.
The wave strikes with colossal force, pitching the ship heavily to port before
rolling it completely upside down. Passengers and crew are thrown into free
fall, crushed by debris or dragged into the sea as water bursts in through
shattered windows. Supports collapse, broken gas lines ignite flash fires and
lights fail, leaving vast sections of the ship in darkness and chaos. In its
aftermath a few hundred survivors are left to huddle in the still-intact Main
Ballroom, now resting below the waterline. They should stay together, the
captain maintains, and wait here for rescue. One man, professional gambler Dylan
Johns (Josh Lucas), prefers to test the odds alone. Ignoring orders, he prepares
to exit the Ballroom and find his own way to safety, but is collared by
eight-year-old Conor (Jimmy Bennett), who asks that Dylan take him and his
mother Maggie (Jacinda Barrett) along. Fast behind them is Robert Ramsey (Kurt
Russell), anxious to search for his daughter Jennifer (Emmy Rossum) and her
fiancé Christian (Mike Vogel). Only an hour earlier this young couple had found
it impossible to tell him they were engaged and now face much graver challenges.
Wary of alliances, Dylan reluctantly leads the small band of survivors upward
through the bowels of the ship. Those who choose to join them rather than wait
below include a shy stowaway (Mia Maestro), a suicidal man (Richart Dreyfuss)
who re-discovers his will to live and a young waiter with knowledge of the
ship's layout (Freddy Rodriguez). Determined to fight their way to the surface,
they must forge a path together through layers of wreckage as the ship continues
to sink. Bonds form quickly in this journey of vertical climbs, dead ends and
sheer drops. And trust proves vital.