98.806 Views
It is thought that a highly advanced civilization might exist underground. To test this hypothesis, Astro and Uran set out on an underground expedition. There they get attacked by underground men.
First Air Date : Jan 01, 1963
Last Air date : Dec 31, 1966
Episode : 193 Episode
Season : 1 Season
Runtime: 30:14 minutes
Studio: Fuji TV
Country: Japan