Scott Wolter investigates the mystery of the lost Menehune tribe in Hawaii. Then he searches for proof that the Vikings built a permanent settlement in America.
Christof heads to the woods of the UK and snowy fields of Canada to determine what the truth is behind UFO sightings. He soon uncovers a much bigger story behind what secrets the government is hiding.
Christof investigates the Lindbergh kidnapping, a story that made his grandfather's journalism career. Now, using his grandfather's notes and recently declassified FBI files, Christof tracks down surprising new leads to Germany and even the Nazi Party.