Zhou Yang, a young social worker, got into a car accident on a rainy night and traveled to the world of Ultraman Tiga, becoming Keigo Masaki. But Zhou Yang discovered that the world was a little different, and Diga had corrupted into a zombie. Zhou Yang relied on Masaki Keigo's identity and genius intelligence to peel off the cocoons and gradually explore the truth of the matter. What happened to Diga? Can Zhou Yang save the Giant of Light?
