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

Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.

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

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

The Enterprise crew is trapped in paradise when they come to rescue colonists who have fallen to pacifying alien spores and become infected themselves.

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.

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

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

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

The Enterprise collides with a black hole and is thrown back to Earth in the 20th century, where they must find a way back and erase any trace of their…

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.

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

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

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

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

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

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.

The Enterprise encounters a vast alien ship that sets out to test them.

A strange alien substance causes the crew to act out their deepest inhibitions, while the ship plummets out of orbit.

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

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.

While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.

The Enterprise crew investigates the disappearance of a ship’s crew on a planet that is a modern version of the Roman Empire.

A skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.

Captain Kirk must find the cure to a deadly disease and put an end to another Starfleet captain’s cultural interference.

Beings from another galaxy commandeer the Enterprise in an attempt to return home.

The crew of the Enterprise tracks down a Federation observer on a planet dominated by a “Naziesque” regime.

Telepathic aliens take control of Captain Kirk’s and First Officer Spock’s bodies.

The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and joins them in what becomes an arms race.

The crew of the Enterprise encounters an energy-draining space creature.

The Enterprise visits a planet with an Earth-like 1920s gangster culture, with Runyonesque dialog and costumes.

Captain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.

The ship travels to Deep Space Station K7 to guard a consignment of grain bound for Sherman’s Planet. On arrival, a trader named Cyrano Jones gives Lt. Uhura a tribble,…

A series of bizarre murders points to Mr. Scott as the prime suspect.

Captain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth.

The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.

A shuttle crew from the USS Enterprise encounters a man out of history and his mysterious alien companion.

Captain Kirk has a second run-in with the conman, Harry Mudd. Mudd is now the supreme ruler of a planet of androids who cater to his every whim.

Two powerful aliens threaten the well-being of the Enterprise and her crew.

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.