Japanese Balloon Bomb: Is this scrap of fabric evidence of a secret wartime attack on the United States' mainland?
Society Circus Program: Why are some of New York's wealthiest planning a high society circus at the very depth of the Great Depression?
Camp David Letter: Could a box found in a dumpster hold information about the founding of a top-secret Presidential retreat?
click here to see where to watch or .
Ready to Watch History Detectives, Season 6, Episode 3?