Cultivator He Tian finds himself in a crisis-ridden Demonic Sect facing cruel sect examinations, awakening a dual-crossing gate that allows him to travel back and forth between the Immortal Cultivation World and doomsday wasteland Earth. Utilizing resources from the doomsday world to cultivate and grow, he protects doomsday survivors in establishing a safe base to resist mutated monsters and ambitious forces. Returning to the Immortal Cultivation World, he holds firm to his original heart, opposing schemes and covetousness within the sect, breaking through heavy perils with his own strength to achieve self-transformation through practical action, interpreting the youth spirit of never yielding amidst adversity.