Kirk and company encounter a new life form infesting Deep Space Station K-7– tribbles. They also encounter several Klingons while trying to protect a shipment of grain bound for Sherman’s Planet.
| Air Date | 29 December 1967 |
| Production Number | 60342 |
| Stardate | 4523.3 |
| Gregorian Calendar Date | Wednesday, 31 July 2267 21:06:51 GMT Thursday, 01 August 2267 11:22:53 GMT |
| Primary Arc | The Klingons |
| Secondary Arc | Tribbles |
| Tertiary Arc | Arne Darvin |
| See It or Skip It | See It! |
| Previously on Star Trek | Order | Next Time on Star Trek |
|---|---|---|
| I, Mudd | Chronological | A Piece of the Action |
| Wolf in the Fold | Air Date | The Gamesters of Triskelion |
| I, Mudd | Production | Bread and Circuses |
| Elaan of Troyius | Primary Arc | The Time Trap |
| The Trouble with Edward | Secondary Arc | More Troubles, More Tribbles |
| n/a | Tertiary Arc | Trials and Tribble-ations |
Bonus Arc: see Cyrano Jones again in “More Troubles, More Tribbles“
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