A group of friends run a popular travel vlog that helps fund their adventures. The leader of the group brings along her younger sister for the next scuba diving trip to an isolated cove. But when their plane crashes, the two sisters must use their strength, resourcefulness and immense courage to survive a pack of great white sharks.
Six people in a small plane. One of them says before going into the plane that she's claustrophobic, and one can tell during the flight that she's having a hard time. Later on, someone is looking for something in the small broken-off tail of the plane on the bottom of the ocean, breathing from an oxygen tank, and is attacked by sharks while there. --- People in a lifeboat surrounded by sharks; people on a wooden raft surrounded by sharks.
There's a plane accident over/in deep water. I think we're told after the crash that two people fell from the plane, but we learn later that no one died from falling.