Star Trek Episode Rating Graph
Sep 1966 - Jun 1969
Sep 1966 - Jun 1969
8.1
Browse episode ratings trends for Star Trek. Simply click on the interactive rating graph to explore the best and worst of Star Trek's 79 episodes.
S2 Ep15
8.1
29th Dec 1967
The Enterprise must protect a very important shipment of grain from both Klingons and some adorable creatures called tribbles.
S1 Ep28
8.1
6th Apr 1967
Kirk and Spock must travel into the past in order to correct a change that will alter history.
S2 Ep1
8.1
15th Sep 1967
First Officer Spock returns to his home world for a brutal Vulcan mating ritual.
S2 Ep4
8.1
6th Oct 1967
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.
S2 Ep6
8.0
20th Oct 1967
The starship Enterprise and its heavily-damaged sister ship, the USS Constellation, must work together to stop an alien planet-killing machine headed for the heart of Federation territory.
S1 Ep14
8.0
15th Dec 1966
Kirk pits the Enterprise against an invisible spaceship testing the Federation's defenses.
S2 Ep10
8.0
17th Nov 1967
The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.
S3 Ep2
7.9
27th Sep 1968
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
S1 Ep23
7.8
23rd Feb 1967
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.
S1 Ep22
7.8
16th Feb 1967
The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.
S2 Ep24
7.7
8th Mar 1968
A skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.
S1 Ep12
7.7
24th Nov 1966
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.
S1 Ep11
7.7
17th Nov 1966
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.
S3 Ep9
7.7
15th Nov 1968
Captain Kirk is caught between dimensions while the crew of the Enterprise works to retrieve him. All the while, the Tholians demand that the Enterprise leave their space.
S1 Ep20
7.6
2nd Feb 1967
Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.
S1 Ep25
7.5
9th Mar 1967
Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.
S1 Ep19
7.5
26th Jan 1967
In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.
S2 Ep20
7.5
9th Feb 1968
Ancient alien minds are given control of Captain Kirk's and First Officer Spock's bodies.
S1 Ep10
7.5
10th Nov 1966
The Enterprise encounters a vast alien ship that threatens the Enterprise with destruction.
S2 Ep3
7.4
29th Sep 1967
The crew of the USS Enterprise deals with an indestructible planet-destroying space probe.
S2 Ep22
7.4
23rd Feb 1968
Beings from another galaxy commandeer the Enterprise in an attempt to return home.
S1 Ep26
7.4
23rd Mar 1967
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.
S1 Ep4
7.4
29th Sep 1966
A strange alien substance causes the crew to lose their inhibitions.
S1 Ep16
7.4
5th Jan 1967
Spock commands a stranded away team when their shuttlecraft is stranded on a planet with hostile natives.
S3 Ep4
5.9
11th Oct 1968
On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.
S1 Ep27
6.2
30th Mar 1967
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.
S3 Ep20
6.2
21st Feb 1969
The Enterprise picks up a group of space "hippies" looking for Eden.
S3 Ep13
6.4
20th Dec 1968
The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
S2 Ep23
6.4
1st Mar 1968
Captain Kirk must find the cure to a deadly disease and put an end to another Starfleet captain's cultural interference.
S3 Ep1
6.4
20th Sep 1968
An alien female beams aboard the ship and, after incapacitating the rest of the crew, surgically removes Spock's brain. Kirk and the crew have just hours to locate and replace it before Spock's body dies.
S3 Ep10
6.4
22nd Nov 1968
The crew of the Enterprise encounters an ageless and sadistic race of humanoids with the power of telekinesis and who claim to have organized their society around Ancient Greek ideals.
S2 Ep19
6.4
2nd Feb 1968
The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and is forced to help maintain a balance of power.
S3 Ep3
6.5
4th Oct 1968
An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
S2 Ep7
6.5
27th Oct 1967
Two powerful aliens threaten the well-being of the Enterprise and her crew.
S3 Ep17
6.5
24th Jan 1969
Kirk, McCoy, and Sulu are stranded on a barren planet where a mysterious woman attempts to kill them one at a time, while the Enterprise must travel halfway across the galaxy to rescue them.
S1 Ep8
6.6
27th Oct 1966
Kirk and a landing party are stranded on a planet due to a disease that causes any adult to die a painful death, and must deal with the local children who have survived.
S2 Ep16
6.6
5th Jan 1968
Captain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.
S3 Ep18
6.7
31st Jan 1969
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
S3 Ep12
6.7
6th Dec 1968
While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
S3 Ep22
6.7
7th Mar 1969
Aliens force Captain Kirk and First Officer Spock to join forces with "Abraham Lincoln" and "Surak" to battle villains in a contest of good vs. evil.
S2 Ep5
6.8
13th Oct 1967
The crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.
S3 Ep16
6.8
17th Jan 1969
A race of overpopulated aliens abduct Captain Kirk to solve their problem.
S2 Ep26
6.8
29th Mar 1968
While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.
S1 Ep13
6.8
8th Dec 1966
Kirk is one of the last survivors who can identify a mass killer, who lurks among a Shakespearean troupe aboard the Enterprise.
S2 Ep11
6.9
1st Dec 1967
The crew of the Enterprise become entangled in a planet's tribal power struggle.
S2 Ep2
6.9
22nd Sep 1967
The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.
S3 Ep15
6.9
10th Jan 1969
The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
S2 Ep25
6.9
15th Mar 1968
The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.
S1 Ep1
7.2
8th Sep 1966
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.
S1 Ep2
7.0
15th Sep 1966
Charlie Evans, the sole survivor of a transport crash, is transferred to the Enterprise from a different ship. Why are they so eager to rid themselves of him, though? There's more to Charlie than meets the eye...
S1 Ep3
7.3
22nd Sep 1966
While exploring the edge of the galaxy, the Enterprise encounters an energy barrier that gives some crewmen strange powers.
S1 Ep4
7.4
29th Sep 1966
A strange alien substance causes the crew to lose their inhibitions.
S1 Ep5
7.1
6th Oct 1966
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.
S1 Ep6
6.9
13th Oct 1966
The Enterprise picks up a intergalactic conman, Harry Mudd, and three incredibly beautiful women who harbor a dark secret.
S1 Ep7
7.3
20th Oct 1966
Nurse Christine Chapel is reunited with her old fiance on Exo III, but the scientist has plans for Captain Kirk and the Federation.
S1 Ep8
6.6
27th Oct 1966
Kirk and a landing party are stranded on a planet due to a disease that causes any adult to die a painful death, and must deal with the local children who have survived.
S1 Ep9
7.1
3rd Nov 1966
Kirk investigates an experimental facility for holding prisoners and finds a sinister scheme.
S1 Ep10
7.5
10th Nov 1966
The Enterprise encounters a vast alien ship that threatens the Enterprise with destruction.
S1 Ep11
7.7
17th Nov 1966
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.
S1 Ep12
7.7
24th Nov 1966
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.
S1 Ep13
6.8
8th Dec 1966
Kirk is one of the last survivors who can identify a mass killer, who lurks among a Shakespearean troupe aboard the Enterprise.
S1 Ep14
8.0
15th Dec 1966
Kirk pits the Enterprise against an invisible spaceship testing the Federation's defenses.
S1 Ep15
6.9
29th Dec 1966
The Enterprise crew take shore leave on a peaceful, pastoral planet... where their dreams and fantasies come to life.
S1 Ep16
7.4
5th Jan 1967
Spock commands a stranded away team when their shuttlecraft is stranded on a planet with hostile natives.
S1 Ep17
7.1
12th Jan 1967
The Enterprise finds itself at the mercy of a seemingly omnipotent being who fancies himself an 18th century Englishman.
S1 Ep18
7.1
19th Jan 1967
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.
S1 Ep19
7.5
26th Jan 1967
In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.
S1 Ep20
7.6
2nd Feb 1967
Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.
S1 Ep21
7.2
9th Feb 1967
The Enterprise encounters a seemingly peaceful civilization run by a "benevolent" being named Landru... who intends for them to join his people.
S1 Ep22
7.8
16th Feb 1967
The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.
S1 Ep23
7.8
23rd Feb 1967
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.
S1 Ep24
7.3
2nd Mar 1967
The Enterprise crew try to rescue colonists from deadly radiation, but instead encounter strange alien spores that seem to offer paradise.
S1 Ep25
7.5
9th Mar 1967
Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.
S1 Ep26
7.4
23rd Mar 1967
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.
S1 Ep27
6.2
30th Mar 1967
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.
S1 Ep28
8.1
6th Apr 1967
Kirk and Spock must travel into the past in order to correct a change that will alter history.
S1 Ep29
7.3
13th Apr 1967
Kirk and the Enterprise must combat parasitic aliens threatening the lives of millions.
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The first episode of Star Trek aired on September 08, 1966.
The last episode of Star Trek aired on June 03, 1969.
There are 79 episodes of Star Trek.
There are 3 seasons of Star Trek.
No.
Star Trek has ended.