Yuka Katsuragi, a beautiful TV news reporter, has attracted the affections of a Yakuza thug, Katsuji Yashima, who travels with his brother all the way to Spain to find her, only to have his affections rebuffed by Yuka. A terrible earthquake hits, and Katsuji, his brother, and Yuka, along with four high-schoolers in Spain on a field-trip, all fall deep underground. While trapped below the surface, they encounter a mysterious old woman who reveals to them prophecies that the wealthy nation of Japan will meet the same demise as the once prosperous city of Carthage. Katsuji and the others insult the old woman, who then sends them to see the world of the future with their own eyes, a future of desolation and death...