Question: Build a movie plot around this: What causes the on-board boilers to explode? Flooding water.
Answer:
The film continues the story from the original movie's conclusion. The Poseidon is still afloat, and the six survivors of Reverend Scott's team have been rescued. After sailing through rough seas, a tugboat captain, Mike Turner (Michael Caine), discovers the capsized wreck of the ship. Accompanied by second mate Wilbur (Karl Malden) and passenger Celeste Whitman (Sally Field), he heads out to claim salvage rights on it, as the tugboat 'S.S. Jenny' lost her cargo in the same storm that capsized it.They are soon followed by Dr. Stefan Svevo (Telly Savalas) and his crew; Kurt (Paul Picerni), Doyle (Patrick Culliton), and Castrop (Dean Raphael Ferrandini) who claim to be Greek Orthodox medics who received the ship's SOS. The seven of them board the doomed vessel and soon become trapped after the corridor entrance to the cut-out hole collapses. The group with Turner also encounters more survivors; the ship's nurse, Gina Rowe (Shirley Jones), a wealthy passenger named Suzanne Constantine (Veronica Hamel), and war veteran Frank Mezzetti (Peter Boyle) who is searching for his missing teenage daughter Theresa (Angela Cartwright), which they soon find along with the elevator operator Larry Simpson (Mark Harmon) and as well as a brash "billionaire" named "Tex" (Slim Pickens). Later they find two more surviving passengers; the blind retiree Harold Meredith (Jack Warden) and his wife Hannah (Shirley Knight), who were waiting for rescue.Water continues to submerge more decks and more explosions occur. Turner and his group find the purser's office, where Svevo decides that he and his men will continue their search for other survivors. Turner agrees and Svevo and his men leave in another direction. Another explosion causes the safe in the purser's office to fall through the floor and open, revealing gold coins (each one worth 100 times its weight in gold) as well as cash and diamonds. Turner and Wilbur excitedly gather it and start looking for another way out of the ship.Unknown to Turner and the survivors, Suzanne was...