On April 15, 1912, Elyzabeth desperately searches for her husband Charles while the original RMS
Titanic is sinking. She manages to get into a lifeboat, and although the ropes loosen on their own and several people are killed, Elyzabeth survives the sinking. She sees Charles drown in the wreckage, but he reappears as a
ghost and pulls her into the ocean. On April 15, 2022 (110 years since the
sinking of the Titanic and 10 years since the events of
Titanic II), a new high-tech luxury cruise ship
Titanic III will be christened, sailing the same route as the original. Married influencers Mia and Jackson Stone board the ship, as does their fan Nancy. Captain Celeste Rhoades tells her crew that everything needs to be done well to avoid the incidents that befell the two previous
Titanics. The ship sets sail while stowaway Idina Bess infiltrates the ship's basement and steals one of the
Titanic victims' artifacts collected by Professor Hal Cochran. Meanwhile, the Stones investigate the
Titanic through their networks, coming into conflict with Hal. Crew member Julie informs the passengers that there will be a commemoration of the original
Titanic that evening. In the basement, Idina prepares a satanic ritual to bring back her great-grandfather, who turns out to be
Captain Edward Smith. Smith calls the souls of the passengers who died in the original disaster to him; Mia, Jackson and Nancy witness this, but ignore it. Rhoades, Julie and the rest of the passengers gathered in the lounge begin to honor the original victims. Meanwhile, Mia and Jackson are attacked by the original
Titanic's orchestra on the main deck; Jackson disappears and Mia is killed. Concerned, Rhoades interrogates Hal and forces him to go below, where he is attacked by a ghost but survives. In the engine room, the ghosts kill the engineers and take control of the ship. Captain Rhoades and crew member Brian go to the engine room and discover the bodies. They try to shut down the engines, but the turbines explode and disable the ship's controls. As the ghosts attack the passengers, Idina is arrested by Brian, but she kills him and escapes with Smith's help. Rhoades orders a distress call as Idina, now possessed by Smith's ghost, heads to the bridge to crash the ship into an iceberg. Despite Rhodes' attempts to persuade her to stop, Idina kills herself, the ship crashes, and panic ensues. Rhoades orders the passengers into the lifeboats as quickly as possible, despite many of the passengers and crew having been killed, including Julie and Brian. Hal and Rhoades try to board the lifeboat with Nancy and the other passengers, but the ropes loosen and nearly everyone dies. As the ship sinks, Hal and Rhodes are still alive in the lifeboat. Hal blames himself for the disaster before succumbing to
hypothermia. As Rhoades tries to revive him, his ghost attacks her. ==Cast==