8.1/101,200 votesLoading...#1 - Yesteryear
Season 1 Episode 2 - Aired 9/15/1973
Spock travels back in time to prevent his death as a young Vulcan.
Director: Hal Sutherland
Writer: D.C. Fontana
7.0/10979 votesLoading...#2 - More Tribbles, More Troubles
Season 1 Episode 5 - Aired 10/6/1973
Cyrano Jones introduces tribbles that cannot reproduce.
Director: Hal Sutherland
Writer: David Gerrold
7.0/10829 votesLoading...#3 - The Slaver Weapon
Season 1 Episode 14 - Aired 12/15/1973
Spock, Sulu, and Uhura discover a time capsule from an ancient and technologically advanced race. However, it draws some unwanted attention.
Director: Hal Sutherland
Writer: Larry Niven
7.0/10744 votesLoading...#4 - The Counter-Clock Incident
Season 2 Episode 6 - Aired 10/12/1974
With Commodore Robert April (the first commander of the Enterprise) on board, Kirk pursues a ship plunging into a supernova, and enters a universe where time runs backwards.
Director: Bill Reed
Writer: Fred Bronson
6.9/10796 votesLoading...#5 - The Time Trap
Season 1 Episode 12 - Aired 11/24/1973
The Enterprise crew must work with Klingons to escape from a pocket universe.
Director: Hal Sutherland
Writer: Joyce Perry
6.8/10880 votesLoading...#6 - The Survivor
Season 1 Episode 6 - Aired 10/13/1973
The Enterprise finds a long-lost explorer.
Director: Hal Sutherland
Writer: James Schmerer
6.8/10737 votesLoading...#7 - Albatross
Season 2 Episode 4 - Aired 9/28/1974
Dr. McCoy is arrested and held responsible for causing a plague that ravaged the planet Dramia II, where he performed a mass-innoculation 19 years earlier.
Director: Bill Reed
Writer: Dario Finelli
6.7/10961 votesLoading...#8 - One of Our Planets Is Missing
Season 1 Episode 3 - Aired 9/22/1973
The crew of the Enterprise races to find a way to stop a cloud from destroying inhabited planets.
Director: Hal Sutherland
Writer: Marc Daniels
6.7/10755 votesLoading...#9 - The Eye of the Beholder
Season 1 Episode 15 - Aired 1/5/1974
Telepathic aliens put Kirk, Spock and McCoy in a zoo.
Director: Hal Sutherland
Writer: David P. Harmon
6.6/101,155 votesLoading...#10 - Beyond the Farthest Star
Season 1 Episode 1 - Aired 9/8/1973
In orbit around a dead star, the Enterprise comes across a huge starship inhabited by a parasitic life form that threatens the entire ship.
Director: Hal Sutherland
Writer: Samuel A. Peeples
6.6/10785 votesLoading...#11 - The Terratin Incident
Season 1 Episode 11 - Aired 11/17/1973
The Enterprise crew begins to shrink after radiation exposure.
Director: Hal Sutherland
Writer: Paul Schneider
6.5/10959 votesLoading...#12 - The Lorelei Signal
Season 1 Episode 4 - Aired 9/29/1973
Female crew members must take over the Enterprise when the men are incapacitated by a race of sirens.
Director: Hal Sutherland
Writer: Margaret Armen
6.5/10754 votesLoading...#13 - The Pirates of Orion
Season 2 Episode 1 - Aired 9/7/1974
With Spock stricken down by a fatal disease, the Enterprise must track down the drug that can cure him before it is too late.
Director: Bill Reed
Writer: Howard Weinstein
6.4/10766 votesLoading...#14 - The Ambergris Element
Season 1 Episode 13 - Aired 12/1/1973
While exploring the planet Argo, Kirk and Spock are turned into water breathers.
Director: Hal Sutherland
Writer: Margaret Armen
6.4/10758 votesLoading...#15 - The Practical Joker
Season 2 Episode 3 - Aired 9/21/1974
The computer of the Enterprise gains partial sentience and starts playing practical jokes on the crew.
Director: Bill Reed
Writer: Chuck Menville
6.4/10720 votesLoading...#16 - How Sharper Than a Serpent's Tooth
Season 2 Episode 5 - Aired 10/5/1974
The Enterprise runs into a being that once visited Earth and influenced the Mayan culture.
Director: Bill Reed
Writer: David Wise, Russell Bates
6.3/10812 votesLoading...#17 - Mudd's Passion
Season 1 Episode 10 - Aired 11/10/1973
Space con artist Harry Mudd returns, selling a fake love potion.
Director: Hal Sutherland
Writer: Stephen Kandel
6.2/10804 votesLoading...#18 - Once Upon a Planet
Season 1 Episode 9 - Aired 11/3/1973
Kirk returns to the "shore leave" planet, but it's not as peaceful as it was when they last saw it.
Director: Hal Sutherland
Writer: Chuck Menville
6.2/10764 votesLoading...#19 - The Jihad
Season 1 Episode 16 - Aired 1/12/1974
Kirk and Spock are recruited for a heist to recover a stolen relic, which if not recovered could spark an galactic jihad.
Director: Hal Sutherland
Writer: Stephen Kandel
6.1/10858 votesLoading...#20 - The Infinite Vulcan
Season 1 Episode 7 - Aired 10/20/1973
A race of plant people, and their master, have a plan to force peace onto the galaxy.
Director: Hal Sutherland
Writer: Walter Koenig
6.1/10751 votesLoading...#21 - Bem
Season 2 Episode 2 - Aired 9/14/1974
The Enterprise crew is joined by a unpredictable alien called Ari bn Bem, an independent observer from the planet Pandro.
Director: Bill Reed
Writer: David Gerrold
5.9/10868 votesLoading...#22 - The Magicks of Megas-tu
Season 1 Episode 8 - Aired 10/27/1973
At the center of the galaxy, the Enterprise discovers a race of powerful aliens.
Director: Hal Sutherland
Writer: Larry Brody
The Best Episodes of Star Trek
Every episode of Star Trek ranked from best to worst. Let's dive into the Best Episodes of Star Trek!
The animated adventures of Captain Kirk, Mr. Spock and the crew of the Starship Enterprise.
Genres:AnimationDramaSci-Fi & Fantasy
Network:NBC
Best Episodes Summary
"Yesteryear" is the best rated episode of "Star Trek". It scored 8.1/10 based on 1200 votes. Directed by Hal Sutherland and written by D.C. Fontana, it aired on 9/15/1973. This episode scored 1.1 points higher than the second highest rated, "More Tribbles, More Troubles".