This Week on History Happy Hour: Everyone knows about the Doolittle Raid, in which 16 B25s took off from an aircraft carrier to bomb Japan early in the war.  But few know the story of Plane 8, which never attacked Tokyo, but headed across Japan to the Soviet Union. Was it on some sort of secret mission that has never been revealed?

Chris and Rick look for answers with Dan Hampton, author of Vanishing Act:  The Enduring Mystery Behind the Legendary Doolittle Raid.

Lieutenant Colonel (Ret.) Dan Hampton flew 151 combat missions during his twenty years in the United States Air Force. Col. Hampton received four Distinguished Flying Crosses with Valor, a Purple Heart, eight Air Medals with Valor, five Meritorious Service medals, and numerous other citations. He is the author of eight books, and A frequent guest on CNN, Fox News, and MSNBC discussing foreign affairs and geopolitics.