Episode Information
About this episode
Once Upon a Planet is season 1, episode 9 of Star Trek: The Animated Series, first aired on 3 November 1973.
In series order, the previous episode is S01E08 — The Magicks of Megas-Tu and the next is S01E10 — Mudd's Passion. The same episodes are previous and next by original air date.
Browse every episode in Season 1.
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