STAR TREK THE ORIGINAL SERIES
Season TWO
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| Picture: | Episode: | Description: | Stardate: |
| Amok Time | Spock undergoes the Vulcan mating ceremony. | 3372.7 | |
| Who Mourns for Adonais? | The Enterprise is held captive by the Greek god, Apollo. |
3468.1 | |
| The Changeling | The Enterprise encounters a probe named Nomad. |
3451.9 | |
| Mirror, Mirror | Kirk, Scott, McCoy and Uhura enter a parallel universe. | Unknown | |
| The Apple | The crew discovers a paradise controlled by computer. | 3715.3 | |
| The Doomsday Machine | A machine that destroys planets threatens the Enterprise. | 4202.9 | |
| Catspaw | Aliens on a mission of conquest hold the crew captive. | 3018.2 | |
| I, Mudd | A takeover leads Kirk to his old nemesis, Harry Mudd. | 4513.3 | |
| Metamorphosis | The shuttlecraft Galileo makes a forced landing on a world with a single human inhabitant. |
Unknown | |
| Journey to Babel | Tensions run high when the Enterprise transports ambassadors to the Babel Conferences. | 3842.3 | |
| Friday's Child | The Enterprise crew becomes embroiled in a local power struggle on a tribal planet. |
3497.2 | |
| The Deadly Years | Accelerated aging affects the senior officers and threatens Kirk's ability to lead. |
3478.2 | |
| Obsession | Kirk is determined to hunt down a vampiric entity he failed to destroy in his past. | 3619.2 | |
| Wolf in the Fold | Scotty is implicated in a Jack the Ripper-style murder. |
3614.9 | |
| The Trouble With Tribbles | The Enterprise is overrun by furry creatures while tangling with Klingons and bureaucrats. | 4523.3 | |
| The Gamesters of Triskelion | Three disembodied beings wager on fights staged by prisoners abducted from around the galaxy. |
3211.7 | |
| A Piece of the Action | Kirk investigates a planet with an Earth-like 1920s gangster culture. | 4598.0 | |
| The Immunity Syndrome | A giant space amoeba threatens the entire galaxy. | 4307.1 | |
| A Private Little War | The Klingons provide arms to a peaceful planet and disrupt the balance of power. |
4211.4 | |
| Return to Tomorrow | Telepathic aliens take over Kirk and Spock's bodies. | 4768.3 | |
| Patterns of Force | Enterprise is sent to planet Ekos to investigate a disappearance of Federation historian John Gill. |
2534.0 | |
| By Any Other Name | Extra-galactic beings commandeer the Enterprise in an attempt to return home. |
4657.5 | |
| The Omega Glory | The Enterprise finds a planet devasted by disease that appears to treat the American flag with great reverence. |
Unknown | |
| The Ultimate Computer | Enterprise is used to test the new M-5 computer. |
4729.4 | |
| Bread and Circuses | Spock and McCoy are forced to fight in Roman-like games. |
4040.7 | |
| Assignment: Earth | The Enterprise goes back in time and discovers a mysterious stranger trying to interfere with 20th-century events. | Unknown |