Episode Information
About this episode
One of Our Planets Is Missing is season 1, episode 3 of Star Trek: The Animated Series, first aired on 22 September 1973.
In series order, the previous episode is S01E02 — Yesteryear and the next is S01E04 — The Lorelei Signal. The same episodes are previous and next by original air date.
Browse every episode in Season 1.
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