In the 1910s, the opium trade was rampant in the western border of China. The dart king Tashi (played by An Yaping) was favored by the foreigner Tom (played by Long Wei) and was bribed to his command to help him transport drugs. In order to make Tashi die, Tom promised to redeem Tashi's good friend Cuihua (played by Ma Junqin) from the brothel with a lot of money. Jin Lei (played by Lu Jun) of the border pass private team was ordered to track down the drug trafficking of foreigners, but he couldn't find the evidence, so he and his uncle Jiuqu Dao Chang searched in many ways, and finally found Tom's hidden opium. After the matter was revealed, Tom blamed Tashi in order to escape responsibility, and Tashi, who did not know what was going on, was taken into custody. Seeing her lover in prison, Cuihua had no choice but to commit herself to others, seeking a chance to visit the prison and telling Tashi the truth. Tom had loaded the opium into his car and was trying to escape through the north gate, when he met Tashi, who had escaped from prison. When the enemy saw each other, Tashi didn't think much about it, jumped into the car, and set fire to it......