Four young Americans set sail on a diving trip, to find the rumoured location of a WWII wreckage. As the day unfolds, and a storm rolls in, their trip soon becomes something much more sinister. Who will live? Who will die? Players can take the role of each of the five protagonists, including the captain of the boat, each with a different perspective. Explore and discover the mysteries of their terrifying situation, and be forced to make decisions that will change their lives forever.