Wartime Baseball - A Seattle man has a baseball, given to him by his father, that is autographed by baseball icon Dizzy Dean. The ball is dated July 12, 1944, and his father claims he played catcher in a wartime ballgame that brought together two legendary pitchers: Dizzy Dean and Negro League star Satchel Paige. It seems far-fetched that an Air Force Staff Sergeant could have shared the field with these two sports heroes, especially in an era when both the military and baseball were segregated. HISTORY DETECTIVES travels to Washington State, Indiana and Illinois to investigate whether the autographed ball could be evidence of the influence of America's national pastime on racial integration.

Confederate Eyeglass - A contributor in Terre Haute, Indiana, has a tiny brass eyeglass that, when peered through, reveals an image of Confederate president Jefferson Davis. The owner believes miniature "Davis" eyeglass pieces were a wartime adornment of confederate supporters in the North who used these objects to secretly identify themselves to one another. HISTORY DETECTIVES travels to New York and Virginia to examine the intricacies of microphotography and the truth behind a possible sympathizer "secret handshake."

Howard Hughes' Invention - In the early morning hours of June 1, 1909, Howard Hughes Sr. packed a secret invention into the trunk of his car and drove off into the Texas plains. At an oil well near Goose Creek, Texas, a crew of workers watched in awe as Hughes showed off his new creation: a twin-cone roller rock bit that would ultimately allow oilmen around the world to tap into previously unreachable oil reserves. But was it in fact Hughes who invented this device? A man in San Jose, California, has a letter that he believes will prove his grandfather deserves credit for the invention. HISTORY DETECTIVES travels to McMinnville, Oregon, and Houston, Texas, to explore the mysteries of the Texas oil industry and the Howard Hughes dynasty.