At the beginning of the last century, the ruins of the ancient city of Loulan were discovered, leading explorers from all over the world to explore for treasures, and countless precious cultural relics were excavated by foreign treasure theft groups. Chen Xiao, an explorer, has been working hard to stop the bandits from destroying the monuments and stealing national treasures, so he is regarded as a thorn in the flesh of many bandits. In an escape from the bandits, Chen Xiao mistakenly entered an area that has never been set foot in, this place is the legendary "Mirage City."

Snow Leopard Secret War is set in 1943, when the war in the pacific was still going on, causing the Japanese army to be affected and had to switch to defense mode. However, they were carrying out another battle plan, a large-scale attack began, they also tasked agents with lying in the area and illegally transporting weapons. . At this time, the leader of the Independent Troupe Tiger Tou Son Bat Lo Luu Vien found the spies and successfully prevented an impending war.