A prion virus suddenly breaks out in the Great Xia Kingdom, creating hordes of zombies. Xia Tiegang is unfortunately infected and becomes one of them. But he is lucky enough to awaken the Ultraman Zero ancestor within him, and by a twist of fate, he is taught a set of alpha techniques. He then joins the Great Xia Kingdom’s counteroffensive alliance army, helping humanity defeat the zombies and reclaim lost territory. However, he sacrifices himself during a rescue mission to protect the alliance leader, Huang Junjie. Afterward, he is reborn, returning to seven days before the virus outbreak… Then, together with Huang Junjie, he carefully pieces together the clues to uncover the truth behind the outbreak, bringing humanity a glimmer of hope for victory.
