Germany, 1938: In Berlin, his owners christened him Levi. When they fled to America, he became Hercules - star of the silver screen in Hollywood's golden age. Then he caught the eye of Hitler, who called him Hansi. A pure-bred lapdog - privy to all the Fuhrer's secrets. But he was known to the Resistance as Sirius. The insider who could bring peace to a world at war... Now it is time for his story to be told.