AboutThe world’s first stealth weapon, the U-Boat, takes on the might of the Royal Navy. Sinking 12m tons of shipping, they almost win the war. Fighting back changes the rules of naval warfare. Draining the Oceans reveals the story. More Work Collision Course SciencePageOcean Wreck Investigation Lost Fleet of WWIPageWorld's Greatest Wrecks Assassins of the DeepPageOcean Wreck Investigation View All