In the tranquil and serene primeval forests of Northeast China, the air is fresh, and all things are reviving. Brothers Xiong Da and Xiong Er chase and run happily through the woods. Just then, the roar of an engine shatters the forest's peace. The intruder is a shabby-looking, bald, and skinny man named Guangtou Qiang, a lumberjack hired by Boss Li to log in the forest. The beautiful forest faces an unprecedented crisis. To protect their home, Xiong Da, Xiong Er, and the other small animals in the forest engage in a long-lasting and amusing battle against this foreign invader. Protecting the ecological environment is everyone's responsibility—even bears are no exception!