The film tells that the catastrophe era, the earth is a waste land, the survivors are divided into wanderers and civilians, they are attached to the rule of the interstellar armed groups, in which the rogues rely on the plundering of civilian materials as a livelihood, making civilians in this harsh It is difficult to survive in the environment. After a hundred years of black technology explosion, it will bring about a civilized renaissance. In the face of the deteriorating planet, mankind is determined to continue the race and is determined to interstellar immigration. The "curvature engine" developed by the Chinese researcher Hailei has become the key to the interstellar immigration, and is also the target of robbers and interstellar armed groups.

During the Northern Wei Dynasty, Mulan joined the army for his father and returned with honor. Ten years later, Rouran broke the border again, and Mulan resolutely returned to the battlefield. To save Tuoba, Mulan fell into the enemy. In prison, Mulan saw through Kunpeng's tricks. Kunpeng killed Khan and blamed Mulan. Mulan battled Kunpeng to protect innocent people. The princess pointed out that the real murderer was Kunpeng. Kunpeng was killed in the melee. The chaos subsided. This film celebrates peace and national harmony, and shows that Mulan, as a woman, does not abandon her compatriots, does not abandon her country, and constantly strives for the outstanding quality and family feelings.