[1][7][8] In 2050, the Kepler 822, a research and drilling facility operated by Tian Industries at the bottom of the Mariana Trench, is struck by what is assumed to be a strong earthquake.

As part of the facility is destroyed by the incident, mechanical engineer Norah Price and her colleagues, Rodrigo and Paul, make their way to the escape pod bay.

Together, they reach a control base and find biologist Emily Haversham and engineer Liam Smith, who are unsuccessful in their attempts to make contact with the surface.

Norah, accepting her impending death, initiates an overload of Roebuck's nuclear core, resulting in a massive explosion that kills the creatures and allows the escape pods to reach the surface.

During the credits, news headlines say there were only two survivors, and Tian Industries refuses to be involved with investigations into the events due to expanding its drilling efforts.

On February 22, 2017, it was announced that Kristen Stewart would star in Underwater, a film to be directed by William Eubank from a screenplay by Brian Duffield and Adam Cozad.

[10] On April 5, 2017, during principal production, Vincent Cassel and Mamoudou Athie joined the cast,[11] and the next day, John Gallagher Jr. was also added.

[13] After shooting the film, the director decided to design the alpha creature based on H. P. Lovecraft's mythos,[14] as it features Cthulhu as the monster.

[1] In the United States and Canada, Underwater was released alongside Like a Boss and the expansions of Just Mercy and 1917, and was projected to gross around $8 million in its opening weekend.

[2] John DeFore of The Hollywood Reporter wrote: "This is a creature feature, whose gory jump-scares and icktastic critter design are the reason you're here.

An ensemble led by Kristen Stewart brings credible camaraderie to the scenario without quite matching the vivid chemistry of Alien and its best descendants; with such a tightly packed survival tale ahead of them, though, few viewers will be calling out for more character development.

"[23] Owen Gleiberman of Variety wrote: "Underwater is a stupefying entertainment in which every claustrophobic space and apocalyptic crash of water registers as a slick visual trigger, yet it's all built on top of a dramatic void.