In 1936 twelve-year-old streeter Lewis Carter finds himself in Berlin, Germany, at the heart of Nazi territory, on a convoluted trail to uncovering the whereabouts of his long-missing, presumed-dead father, Professor Harold Carter. Lewis is armed with a street map, an address...and of course his best friend, Pearl Alice Clavell. But even Pearl's wealthy and somewhat suspect connections cannot protect them from the dangers that lurk at every swastika-draped corner. As they draw closer to finding Lewis's father, they discover that the professor is at the center of a deadly plot that threatens global stability and the very outcome of the impending war. The two friends must use all their street wiles-- with the help of a Flash or two-- to save the day, as well as their skins!