When the Nazi's invaded Poland at the beginning of World War II, they overtook Cracow's beloved Wawel Castle. It had been the center of town life for more than 600 years. Suddenly, it was the seat of Hitler's General Government. The citizens were in mortal danger. Bravely, they took the situation in hand and formed an underground resistance group named after their town park, Acorn Park. They began having secret meetings in the basement of a church. They planned and dreamed up ways to outsmart the Nazi's. They would have to be very clever if they were to get their family and friends out of Poland before their operation was discovered by the enemy. Time was not in their favor. Their success depended on whether they could raise funds, find temporary hiding places, figure out their transportation and connect with the few who had already escaped.