When twelve-year-old Hans, his father and younger sister are pursued by the Nazis from Switzerland into France, they end up helping the locals resist the Germans and rescue a downed American pilot. No longer safe in Switzerland, Hans, Gretchen, and Papa settle in France using name changes to throw off the relentless pursuit of the Nazis. The family becomes involved in a daring rescue that could save France, their homeland -- maybe even the free world. But the enemy covets the prize, forcing the three heroes and their friends into harrowing chases and narrow escapes. - Publisher.