At the end of the Ming Dynasty, the eunuchs in Dongchang were once in power, but justice was still in the hearts of the people. As more and more people united to resist, the situation of eunuchs in power gradually came to an end. At that time, there was internal fighting in the court, and the prince escaped under the care of the six-door gods, and his whereabouts are unknown. The Dongchang forces are hunting him down, trying to capture the prince and regain control of the court. In Qinghe Prefecture, two hundred kilometers away from the capital, a murder occurred recently.

Red Leopard is the ace squad of the special forces. During an anti-drug operation at the border, they encounter a counterattack by transnational drug traffickers and the captain dies. After the Red Leopard members are successively discharged from the army, Jiang Zhi goes undercover in the drug dealing kingdom, determined to avenge their captain. Meanwhile, Ke Bei and his comrades open a military training base, living a stable life. However, a threatening video concerning Jiang Zhi's survival once again fills him with righteous indignation, spurring him to fight to the very end with the overseas gang.

Former special forces operative Ke Bei is pulled into a dangerous drug cartel deal while on a foreign trip. In his effort to protect his family, he confronts the criminal gang, only to discover his old rival, Wild Dog, among them. Reluctant to risk his comrades or compromise his country, Ke Bei goes in alone, unaware that his loyal Red Leopard team has reassembled to support him from the shadows.