RIPTIDE (2018)

"After calling for help on an abandoned oil rig, Hannah and the other survivors from the destroyed cruise ship await rescue. But when the rig unexpectedly explodes, all seems lost as the impending tsunami approaches. In order to survive the disaster, they'll need to rely on each other as well as a bit of luck."

"As the clock ticks until the sea rolls back, Hannah and the other survivors from the destroyed cruise ship race to a nearby oil rig to call for help. But along the way, two of the youngest members of the group make an incredible discovery - a sunken Nazi submarine. Despite being hidden for over 70 years, danger still lurks inside."