The Best Episodes of Star Trek Season 1

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

Director: Joseph Pevney

Writer: D.C. Fontana, Harlan Ellison

Kirk pits the Enterprise against an invisible spaceship testing the Federation's defenses.

Director: Vincent McEveety

Writer: Paul Schneider

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

Director: Marc Daniels

Writer: Gene L. Coon, Carey Wilber

Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.

Director: Joseph Pevney

Writer: Gene L. Coon

Spock kidnaps his former captain, the crippled Christopher Pike, and heads for a quarantined planet, putting his career and Kirk's life on the line.

Director: Marc Daniels, Robert Butler

Writer: Gene Roddenberry

Spock's court-martial continues as he attempts to justify his abduction of Pike, the theft of the Enterprise, and his heading for a planet declared forbidden by Starfleet.

Director: Marc Daniels, Robert Butler

Writer: Gene Roddenberry

The Federation and the Klingon Empire teeter on the brink of war as Kirk investigates Organia, a humble planet, inhabited by pacifists, that is unwittingly caught in the middle.

Director: John Newland

Writer: Gene L. Coon

The Enterprise encounters a vast alien ship that threatens the Enterprise with destruction.

Director: Joseph Sargent

Writer: Jerry Sohl

The Enterprise arrives at a planet to establish diplomatic relations and finds itself in the middle of a "peaceful" war that threatens to destroy the ship.

Director: Joseph Pevney

Writer: Gene L. Coon, Robert Hamner

When a mysterious alien race destroy an Earth colony, the Enterprise pursues, but Kirk and the alien captain are forced to fight each other by powerful aliens.

Director: Joseph Pevney

Writer: Fredric Brown, Gene L. Coon

In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.

Director: Michael O'Herlihy

Writer: D.C. Fontana

A strange alien substance causes the crew to lose their inhibitions.

Director: Marc Daniels

Writer: John D. F. Black

The Enterprise crew try to rescue colonists from deadly radiation, but instead encounter strange alien spores that seem to offer paradise.

Director: Ralph Senensky

Writer: D.C. Fontana, Jerry Sohl

While exploring the edge of the galaxy, the Enterprise encounters an energy barrier that gives some crewmen strange powers.

Director: James Goldstone

Writer: Samuel A. Peeples

A transporter malfunction causes Captain Kirk to split into his "good" and "evil" selves, and a landing party will freeze to death if they don't merge the two back together.

Director: Leo Penn

Writer: Richard Matheson

Spock commands a stranded away team when their shuttlecraft is stranded on a planet with hostile natives.

Director: Robert Gist

Writer: Shimon Wincelberg, Oliver Crawford

Nurse Christine Chapel is reunited with her old fiance on Exo III, but the scientist has plans for Captain Kirk and the Federation.

Director: James Goldstone

Writer: Robert Bloch

Kirk and the Enterprise must combat parasitic aliens threatening the lives of millions.

Director: Herschel Daugherty

Writer: Steven W. Carabatsos

Kirk investigates an experimental facility for holding prisoners and finds a sinister scheme.

Director: Vincent McEveety

Writer: Shimon Wincelberg

Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.

Director: Marc Daniels

Writer: Don Mankiewicz, Steven W. Carabatsos

The Enterprise crew take shore leave on a peaceful, pastoral planet... where their dreams and fantasies come to life.

Director: Robert Sparr

Writer: Theodore Sturgeon

Kirk and his crew are at deadly risk from an alien creature that feeds on the salt in a human body and can take on any form.

Director: Marc Daniels

Writer: George Clayton Johnson

The Enterprise finds itself at the mercy of a seemingly omnipotent being who fancies himself an 18th century Englishman.

Director: Donnie McDougall

Writer: Paul Schneider

Kirk is one of the last survivors who can identify a mass killer, who lurks among a Shakespearean troupe aboard the Enterprise.

Director: Gerd Oswald

Writer: Barry Trivers

The Enterprise encounters a seemingly peaceful civilization run by a "benevolent" being named Landru... who intends for them to join his people.

Director: Joseph Pevney

Writer: Gene Roddenberry, Boris Sobelman