Some of the world's most deadly killing machines and lethal nuclear weapons lie abandoned under our oceans. Hidden for decades, these top-secret wrecks will unlock the truth about the dawn of the modern nuclear age. Now, with access to never before seen footage, precision data and classified information, we use ground-breaking computer-generated-images to drain the ocean and reveal these secrets under the waves. What secret mission stopped the Nazi nuclear program in its tracks, why did the ship responsible for carrying its cargo of uranium to Tinian Island end up on the bottom of the ocean, and what clandestine CIA operation went deep beneath the waves to recover lost nuclear missiles?