Poster of Cast and Crew in Astro Boy - Season 1 - Episode 99 - A Deep Deep Secret

Astro Boy - Season 1 - A Deep Deep Secret (Episode 99)

Plot: Colon-bu-bu, the explorer of the underground state of Chombo, heads for the ground hoping to see a new world. Then he meets Cobalt and takes him underground as prisoner
Episode Aired On:
Saturday, December 19 1964
60 years ago