When a drug to replicate plant cells creates a sentient form of flower, the planet is over taken by flora and humankind is depleted. A Chinese task force, a widowed father and his young daughter fight to survive in a mission to inject an antidote to the core of the plants to reverse their growth.

At the end of the Southern Song Dynasty, the country was troubled by domestic and foreign aggression, and foreign countries were eyeing the dynasty, trying to invade the Central Plains. One day, when the foreign enemies attacked the city, Zhang Junbao, a disciple of the Wuji faction, turned the tide and helped Wei Linchuan, the general of the Song Dynasty, successfully defend the border. Zhang Junbao returned to the sect to participate in the selection ceremony of the sect leader.