The young Gu Zhaoli, Jing Shichen and Mingming met in a human trafficking den. They were all abducted and forced to transport opium in the human trafficking den. They wanted to escape from this devil's den day and night, but they had mastered their skills. Finally, after enduring for a year, the three of them successfully escaped on a January night. So, the three swore to the moon and officially became brothers. Fifteen years later, Gu Zhaoli, the boss of the underworld family, became the head of the Gu family; Jing Shichen, the second son of the warlord family, had no interest in military affairs, which became the heartache of the old man Jing Ruilin; and Mingming, the third son of the city gangster, mixed among the major sects and major forces, making a living by buying and selling intelligence from all parties. Although the three of them have their own circles, they often get together to fight bandits and bandits together and act as righteous men. But life is always fate. After experiencing all kinds of troubled times, the three brothers who were once close to each other became mortal enemies, and the brotherhood they once had disappeared. At that time, the Japanese army invaded in large numbers, and the three men who had been at loggerheads with each other came together again. When the country was in crisis, the three brothers put on their armor and went into battle hand in hand to kill the invaders. On the road of wind and cloud, the three men grew up in the bloody storm, gradually becoming full-fledged, leaving behind the rootless years in their hearts, and appreciating life together.