A Scotsman, James More, is held captive by jihadist fighters in a windowless room on Africa's eastern coast, while a woman, Danielle Flinders, prepares to dive to the ocean floor in a submersible off Greenland. As they struggle in their separate confinement, they are transported back to the previous Christmas, recalling a chance encounter on a French beach that led to a passionate and long-lasting romance.
Submergence
When two strangers, James and Danielle, cross paths on a romantic getaway, they embark on a whirlwind romance. Meanwhile, James is secretly tasked with tracking down a terrorist in Somalia, but his mission takes a perilous turn when he's imprisoned in a dark cell.