Experts take a look into a secret organization called the Black Legion that terrorized the Midwest for nearly a decade and included some 300 pro-Nazi and right wing groups in America.

  Meet the glidermen of World War II–specially trained pilots and soldiers who went to war in canvas-colored, engineless aircraft at the vanguard of many Allied engagements.

  The Marine Divisions stormed Iwo Jima's heavily defended shores in what was supposed to be a four-day battle. Instead, the bloodiest battle in U.S. Marine Corps history went on for a tense 36 days.

  Charles Lindbergh, known for making the first solo nonstop flight across the Atlantic Ocean in the Spirit of St Louis, is revealed to be pro-Nazi who lived part-time in Germany.

  Experts travel to locations in the Nevada desert and Utah to investigate whether the US government is engaged in a cover-up of UFO research. But military helicopters shadow them.

  From the Appalachian hills arose America's most famous family fued, which allegedly began in 1878 with the theft of a hog. Experts examine the case.

  The host explores a Desert Patrol Vehicle at the Baja 1000. Next, he sees how battlefield medicine provided lifesaving changes in emergency medicine, from cutting-edge triage to smart bandages.

  The latest technology and carbon dating analysis examine whether samples from the Atlantic Ocean are clues to unearthing the location of the lost city of Atlantis.