47 Meters Down (2017)

A claustrophobic tale of suspense and horror that finds two vacationing sisters stranded at the bottom of the ocean while visiting Mexico. The shark-watching caged adventure turns nightmarish soon when the two sisters become dangerously low on oxygen. Do they leave the small cage, the only thing between them and greatest predators of the sea? A frenzy of great white sharks circling nearby will keep the tension high as the two fight for every minute of survival.