The film opens as Noah finds the Charlotte, pristine and newly emerged from beneath the sand for the first time in seventy years after a tropical storm. At the same time, a group of Noah’s college friends converge on Levi’s island bar and dive shack, meeting up for the first time in a couple of years, and exposing the tensions between them as their lives have moved in different directions since graduating.
The film follows the friends as they persuade Noah and Levi to take them on one once-in-a-lifetime dive on the newly discovered wreck before it’s handed over to the authorities.
The dream dive rapidly turns into a nightmare as the friends become trapped in the darkness of the Charlottes interior, 30 meters down and with a dwindling air supply. And then they discover they are not alone.
The friends battle nature and their own fears in the life-or-death struggle that follows as they are forced to confront their own limits and decide what life really means.
