Man threatened as his granddaughter swims in the pool

A cruise ship succumbs to a terrorist act and capsizes on New Year's eve. A rag-tag group of survivors, spearheaded by a priest and a homeland security agent, must journey through the upside down vessel and attempt an escape.

After "The Poseidon Adventure", in which the ship got flipped over by a tidal wave, the ship drifts bottom-up in the sea. While the passengers are still on board waiting to be rescued, two rivaling salvage parties enter the ship on search for money, gold and a small amount of plutonium.

When the seaside community of Amity finds itself under attack by a dangerous great white shark, the town's chief of police, a young marine biologist, and a grizzled hunter embark on a desperate quest to destroy the beast before it strikes again.

Police chief Brody must protect the citizens of Amity after a second monstrous shark begins terrorizing the waters.