Diver on Bottom

In the mid-1930s political tensions are escalating. A group of German engineers in South America, toiling away on a clandestine project, have developed a workable atomic bomb.

Learning of the program, America sends a covert military team to steal it. While transporting the bomb home, the ship disappears with all hands.  

Three quarters of a century later a misplaced top-secret file in a dusty old bin is discovered detailing the mission, and the government hires a civilian group to locate the ship in its underwater grave.  A terrorist cell has also learned of the atomic bomb’s existence and they want to get their hands on it--to use it.

The civilians must secure the bomb to prevent a disaster.