Star Trek

S01E28

The City on the Edge of Forever

Kirk and Spock must travel into the past in order to correct a change that will alter history.

• Directed by Joseph Pevney
• Written by Harlan Ellison, D.C. Fontana

S02E04

Mirror, Mirror

A transporter mishap swaps Captain Kirk and his companions with their evil counterparts in a parallel universe. In the so-called Mirror Universe, the Enterprise is a ship of the Terran Empire, an organization as evil as the United Federation of Planets is benevolent.

• Directed by Marc Daniels
• Written by Jerome Bixby

S02E15

The Trouble With Tribbles

The Enterprise must protect a very important shipment of grain from both Klingons and some adorable creatures called tribbles.

• Directed by Joseph Pevney
• Written by David Gerrold

S01E22

Space Seed

The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.

• Directed by Marc Daniels
• Written by Gene L. Coon, Carey Wilber

S01E14

Balance of Terror

Despite the earlier Romulan war, the Romulans have never been seen in person. The Enterprise, in pursuit of a Romulan aggressor, makes a discovery that causes suspicion about a senior crew member.

• Directed by Vincent McEveety
• Written by Paul Schneider

S02E01

Amok Time

First Officer Spock returns to his home world for a brutal Vulcan mating ritual.

• Directed by Joseph Pevney
• Written by Theodore Sturgeon

S00E42

Star Trek Day 2020: The Original Series Panel

S00E48

Swept Up: Snippets from the Cutting Room Floor

S00E46

Star Trek: Revisiting a Classic

S00E44

Inside the Roddenberry Vault (Part 2)

S00E43

Inside the Roddenberry Vault (Part 1)

S00E45

Inside the Roddenberry Vault (Part 3)