Star Trek: The Original Series

A shape-shifting, salt-craving creature terrorizes the crew of Enterprise.

A powerful teenage boy wreaks havoc aboard the U.S.S. Enterprise.

Kirk's friend, Gary Mitchell, is transformed into a god-like being.

The Enterprise crew catch a virus that removes their inhibitions.

A transporter malfunction creates an evil Kirk.

The Enterprise rescues con artist Harry Mudd and his "beautiful" female cargo.

Nurse Chapel's long-lost fiance is found - along with his androids.

A strange group of children are discovered on an Earth-like planet.

A new treatment for the criminally insane has deadly results.

Kirk bluffs his way past what appears to be a powerful alien.

Spock hijacks the Enterprise to return an injured Captain Pike to Talos IV.

Spock hijacks the Enterprise to return an injured Captain Pike to Talos IV.

Kirk suspects Shakespearean actor Anton Karidian as a mass murderer.

After attacking an outpost, Romulans battle the Enterprise.

On shore leave, the crew's thoughts come to life.

Seven Enterprise crew members go on a shuttle mission with Spock in command.

A powerful entity known as Trelane torments the crew of the Enterprise.

Kirk is pitted in a barehanded duel with a Gorn.

The Enterprise is thrown back to 20th century Earth.

Kirk is recalled for a potential court-martial.

The Enterprise crew finds a world run by a computer named Landru.

Kirk meets Khan, a leader of Earth's Eugenics War.

The Enterprise is diverted by two planets fighting a computerized war.

The Enterprise visits a colony where indigenous flower spores provide the settlers with peaceful contentment.