| Plot Description | Episode Title |
| Kirk and Spock find a planet populated by 1930s gangsters! | |
| The Enterprise encounters an enormous planet-eating machine. Poor Commodore Decker! | |
| The crew discovers an entire civilization living inside an asteroid (and they don't even know it!) | |
| Spock goes into heat and duels Kirk. Nuh nuh NAH NAH NAH NAH NAH nuh NAH nuh.... | |
| Kirk, Spock, and a drug-crazed McCoy are thrown back in time to the 1930s. Edith Keeler must die. | |
| The crew investigates a planet where an Earth ship disappeared 100 years prior. Festival, FESTIVAL, FESTIVAL!!! | |
| Kirk bluffs his way out of a confrontation with a more powerful vessel by inventing a new tactic (and element). They then have tea with a young Clint Howard. | |
| Kirk is trapped on a planet with a lizard man in a battle to the death. Luckily, he took a 'Gunpowder and Makeshift Cannon' course at the Academy. | |
| | Plot Description | Episode Title |
| The Enterprise plays cat-and-mouse with a sneaky Romulan ship. In another life, they could have been friends... | |
| Thieves abscond with one of Spock's crucial organs! | |
| The crew encounters a planet suspiciously like ancient Rome where gladiator matches are broadcast on TV (in glorious color) | |
| Scotty is put on trial for murder. The real culprit? Jack the Ripper! (sort of) | |
| While trying to rescue the USS Defiant, the Enterprise finds itself trapped in an ever-tightening lattice of energy | |
| God shmod! Kirk and company discover Apollo was just a really advanced alien who visited Earth thousands of years ago. | |
| While on Deep Space Station K-7, the crew encounters angry Klingons and adorable furry pets. Careful, the two don't like each other. | |
| The original unaired pilot for the series, this episode features Captain Pike commanding the Enterprise and big-headed aliens with the ability to create powerful illusions. | |
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