Underwater

Norah Price (Kristen Stewart) is a mechanical engineer on the Kepler drilling station, seven miles down in the Mariana Trench. A violent quake — or what passes for one — tears the station apart within minutes of the film's opening. Norah barely makes it out and links up with a small group including Captain Lucien (Vincent Cassel), wisecracking Paul (T.J. Miller), and Emily (Jessica Henwick). The station is gone. Their only path: walk two miles across the ocean floor in pressure suits to Roebuck Station, which has functional escape pods.

The walk is brutal and dark. The creatures find them — fast, aggressive, and everywhere. Survivors are picked off one by one in the blackness. Emily is taken, then found alive inside a creature's nest. The group pushes on, losing members with each encounter.

At Roebuck they find what the drilling woke: orbiting the station's wreckage is something massive — ancient, Lovecraftian in scale, surrounded by its smaller creatures like a god attended by drones. The escape pods are still intact, but the only way to clear a path and destroy the creature mass is to detonate Roebuck's pressurized tanks from inside.

Norah stays behind. She gets the others to the pods and triggers the detonation manually. The explosion tears through the creature swarm. The survivors breach the surface. Norah doesn't.