It was a perfect day for a dive. Clear sight, stable weather, and an incredible, reclusive spot. Drew and May, sisters and experienced divers who share a close and complex bond, are excited as they marvel at this undiscovered underwater world. Their sense of wonder is interrupted when May is abruptly hit by a rock, which knocks off her goggles and leaves her shaken, but with only a small scratch.
However, the sisters' relief is short-lived: the stone came from a landslide above the surface. Suddenly, countless rocks cascade into the ocean. May gets struck by the rockfall and is dragged down. Deep underwater, she's trapped by debris, unable to move. As dangerously low levels of oxygen and cold temperatures put May's life at risk, it's up to Drew to fight for her sister's survival. A frantic race against the clock ensues as Drew desperately tries to find help in the isolated landscape above water, whilst May, pinned to the bottom of the ocean, faces her own psychological battle as she confronts this devastating reality. Despite all her ingenuity and strength, Drew ultimately finds herself having to choose between putting her own life at risk or saving her sister.
Time is running out.
