From the TV series of "Astro Boy," three episodes were selected for theater re-edition, "Robot Rocket" (46th episode), "Earth Defense Troops" (56th episode) and "The Last Day of Earth" (71st episode). Of these three, "Earth Defense Troops" was the only one originally derived from Tezuka Osamu's story "Number 7." Its settings were diverted to the "Astro Boy" series. In this film, the whole scene of "Earth Defense Troops" and a part of "The Last Day of Earth" were reproduced in color for this theater version.

Born with a disability, and taking a desperate gamble, Shen Xiang ventures into perilous lands to find medicine to open his spiritual meridians. He unexpectedly saves two injured goddesses, one divine and one demonic, awakening his own divine meridians. Protecting his father and family, he becomes a legendary alchemist!

For millennia, the ancient and mysterious Dragon Clan has thrived on the Central Continent. Yet the struggle between the Light and Dark Souls of the Divine Realm drags the dragons into conflict. The clan is torn apart by brutal civil strife, facing the threat of extinction. In this desperate hour, Ao Xue, the long-absent prince of the East Sea, returns with formidable power, determined to save the Dragon Clan from peril.

Fifth season of