S1, E2: Battlefield archaeologist Tony Pollard visits the holy site of Jasna Gora to reveal how a monastery miraculously held out against a brutal siege; Historian Alina Nowobilska explores the epic Modlin Fortress to uncover how Poland took on the Red Army just a year after it’s rebirth. And former soldier Andy Torbet learns how an ‘indefensible’ peninsula resisted Hitler’s might at the outbreak of World War II.