Astro Boy· Season 1 · Episode 74Mission to the Middle of the WorldS01E74·June 13, 1964·27m·Fuji TVIt 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.Streaming on (US) See allSharePreviousBig TitanS01E73NextInca Gold FeverS01E75Keep goingSeasonSeason 1 ranked & reviewedEvery episode in airing order with ratings and dates.StreamWhere to watch Astro BoyEvery streaming service and region, checked around the clock.MatchupShows like Astro BoyThe closest matches, ranked by overlap and rating.
