S1, E3: April 1945. An explosion rips apart the American warship Eagle 56 days before the end of WWII in Europe and thousands of miles from enemy lines. Now, after decades of exhaustive searches, most of the wreckage has been found, except for one critical piece: the ship’s boilers, which are key to unlocking the real reason for the blast. Follow a team of civilian investigators as they chase down every lead—off the coast of Maine and in the heart of Germany—to find the last clue that will finally help solve this 75-year-old mystery.