Infamous for his bunkers constructed during World War II and throughout the Cold War, Stalin's hideouts have maintained a shroud of secrecy for decades. Now, for the first time ever, new documents, along with a book banned in Russia, unveil the mysteries of the "Man of Steel's" Soviet-era shelters. As we travel from his unassuming dacha in Lipki to the sanctuary hidden in the forest in Sochi all the way through the Moscow metro system, where a clandestine second metro line connects numerous high-end bunkers for the USSR's elite, we will uncover the true extent of the fortifications meant to secure Stalin from the threats of the West.