Eduardo investigates the story behind a WWII sketch of a soldier held inside the German prisoner of war camp, Stalag 17B. Tukufu traces the story of a fantastic engineering marvel, the Seadrome, a floating airport anchored to the ocean floor where trans-Atlantic passenger flights could refuel. In 1916, a German spy ring carried out a well-planned set of synchronized explosions on Black Tom Island in New York’s harbor—injuring hundreds. Gwendolyn visits a woman in New Jersey who owns an artillery shell used in one of the earliest foreign terrorist attacks on American soil. (10 of 11)