One of Our Planets is Missing

Sep 22, 1973 on NBC at 12:00 AM
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Summary

The crew of the Enterprise races to find a way to stop a cloud from destroying inhabited planets.

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Yesteryear
Season 1 Episode 2

Sep 15, 1973

Next episode

The Lorelei Signal
Season 1 Episode 4

Sep 29, 1973

Guest stars

James Doohan, Majel Barrett