Ultraman Tiga Episode 45

Daigo is left troubled by Masaki's attempt to become an Ultraman, but strange flowers that produce an addicting, hypnotic pollen are now popping up across the globe. While investigating them, GUTS encounters a girl named Terra, who claims to hail from the ancient civilization that Tiga protected. She also says the flowers herald the return of a great darkness from 30 million years ago. (Source: TV Tropes)