Two graduating college students accidentally traveled through time and space and came to the world of Ultra Warriors. During the process of traveling through time and space, they accidentally lost contact with their girlfriends. At this time, it was the second year after Ultraman Mebius and Ultraman Hikari defeated the Dark Emperor Ampera. One of the college students joined the defense team GUYS JAPAN. And captured the power of the Ultra Warriors. Another college student mistakenly possessed the power of the Ultra Warriors and thought he was the strongest. At this time, the demons launched an invasion on various planets, including the earth, in order to rule the universe, but were eventually defeated by the two cooperative Ultra Warriors. However, monsters continued to appear one after another. What is going on? What is the reason why monsters keep appearing? Who is behind all this?
