When I watched sanctum movie tells the story of :
An intrepid team of explorers gets trapped in a complex underground cave system when a tropical storm makes it impossible to escape the same way they entered in this claustrophobic adventure. Sanctum follows a team of underwater cave divers on a treacherous expedition to the largest, most beautiful and least accessible cave system on Earth. When a tropical storm forces them deep into the caverns, they must fight raging water, deadly terrain and creeping panic as they search for an unknown escape route to the sea. Master diver Frank McGuire has explored the South Pacific's Esa-ala Caves for months. But when his exit is cut off in a flash flood, Frank's team-including 17-year-old son Josh and financier Carl Hurley are forced to radically alter plans. With dwindling supplies, the crew must navigate an underwater labyrinth to make it out. Soon, they are confronted with the unavoidable question
The teenager Josh McGuire welcomes his friend Carl and his girlfriend Victoria in Papua, New Guinea, and they immediately fly to the Esa-ala Caves where Josh's father Frank McGuire is heading a cave diving expedition. Josh has a bitter relationship with his father and Carl is the sponsor of the expedition. When Frank and the diver Judes explore an unknown cave system with a restricted access, Judes has an accident and dies. When the team is preparing to hoist her body, there is a storm that blocks the exit from the cave. The group is trapped with few supplies and has to find a way out to the sea through the labyrinth of the cave system. But fear and panic are their greatest enemies
