In the spring of 1942, Anqiu City, a small town in central Hebei Province, was an anti-Japanese base area behind enemy lines. At this time, the Communist Party's military power continued to grow and several surrounding counties and towns were liberated. The Japanese and puppets in Anqiu City were all panic-stricken and thought of retreat. Cai Shuigan, the big boss who runs a donkey meat restaurant "Dingxiang House", is well-received by the Japanese and puppets, but he is actually an underground communist who plays the enemy at the palm of his hand. Under Cai Shuigan's leadership, several Communist Party members launched brave and fearless underground anti-Japanese activities.
