Lu Zhong took the red alert system and traveled to the Northeast in late 1937. At this time, the Japanese invaders were marching through the great rivers and mountains of the motherland, and the Chinese nation had reached a critical moment of life and death. In the forest and snowy plains, the lives of the people in the Northeast are in ruins, and the Japanese invaders are encircling and suppressing the Anti-Japanese Alliance. On the North China Plain, the smoke on the Marco Polo Bridge has not yet cleared, and the Japanese invaders are attacking cities and plundering territory. Faced with this situation, Lu Zhong prepared to use red alert technology to educate little Japan. From then on, the offense and defense changed. If the enemy could go, I could go too!