'May 10, 1940. The Netherlands was swarming with Third Reich troops. In seven days it's entirely occupied by Nazi Germany. Joining a small resistance cell in the Dutch city of Haarlem were three teenage girls: Hannie Schaft, and sisters Truus and Freddie Oversteegen who would soon band together to form a singular female underground squad. Smart, fiercely political, devoted solely to the cause, and "with nothing to lose but their own lives," Hannie,...