While surveying a planet hostile to humanoid life, Kirk and Spock end up fighting for their lives alongside Abraham Lincoln and Surak of Vulcan and against Kahless the Unforgettable, Zora, Colonel Green, and Genghis Khan.
| Air Date | 07 March 1969 |
| Production Number | 60043-77 |
| Stardate | 5906.4 |
| Gregorian Calendar Date | Friday, 08 May 2268 00:08:48 GMT Friday, 03 May 2268 03:22:02 GMT |
| Primary Arc | Final Frontier |
| Secondary Arc | n/a |
| Tertiary Arc | n/a |
| See It or Skip It | See It! |
| Previously on Star Trek | Order | Next Time on Star Trek |
|---|---|---|
| Requiem for Methuselah | Chronological | Turnabout Intruder |
| The Cloud Minders | Air Date | All Our Yesterdays |
| Requiem for Methuselah | Production | All Our Yesterdays |
| The Way to Eden | Primary Arc | Turnabout Intruder |
| n/a | Secondary Arc | n/a |
| n/a | Tertiary Arc | n/a |
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