Sleek, innovative, and ahead of its time, the Aluminaut was the world's first aluminum submarine. But its true test was yet to come – a mission that would thrust it into the riskiest role ever taken on by a submersible.
In 1964, during a routine refueling operation above Palomares, Spain, a B-52 Stratofortress and a KC-135 had a devastating mid-air collision. Metal screeched, flames erupted, and the two massive warplanes plummeted to the ocean below.
But the chaos was only beginning; amidst the billowing smoke and fire, a cargo far more ominous than burning jet fuel was set loose. Three thermonuclear bombs with the power to level cities and scorch nations fell from the sky, their locations unknown.
The worst fears of the Cold War were violently rekindled by the grievous incident. Three of the warheads were swiftly recovered and accounted for, thanks to the cooperation of Spanish authorities. Still, another had sunk to the bottom of the sea, and it would require an extraordinary operation to recover.
The Aluminaut, a top-secret asset, was sent for the high-stakes mission. The submergible and its crew would have to do anything in their power to recover the thermonuclear bomb before someone else could claim it…