Shanghai, 1937. As invading Japanese troops are poised to capture one of the world’s greatest cities, the Chinese Army retreats but one battalion stays behind to fight. These Eight Hundred Heroes – defended Sihang Warehouse with intense bravery and their incredible heroism became an enduring myth that helped define modern China. Shanghai, 1937. As invading Japanese troops are poised to capture one of the world’s greatest cities, the Chinese Army retreats but one battalion stays behind to fight. These Eight Hundred Heroes – defended Sihang Warehouse with intense bravery and their incredible heroism became an enduring myth that helped define modern China.