From a planet bereft of life for half a million years, the Enterprise hears the voice of Sargon, who is able to control the ship and tells them to transport to specific c ...

Kirk returns to the planet where he spent time 13 years before. A friend from his previous visit is now leader of his people. While trying to uphold the Federation's prim ...

The Enterprise is sent to investigate the disruption of the Gamma VII-A solar system and the destruction of the U.S.S. Intrepid, staffed solely by Vulcans. When they arri ...

The Enterprise investigates a planet visited 100 years ago by the U.S.S. Horizon. Kirk, Spock, and McCoy beam down and find themselves in a culture similar to Earth gangs ...

Kirk, Uhura and Chekov find themselves suddenly transported light years across the galaxy to the planet Triskelion. There, they are trained as thralls, slaves who engage ...

Having received a Priority One distress call from an outlying space station, the Enterprise arrives to find they have been summoned there by a Federation commissioner mer ...

While on shore leave on the planet Argelius II with Dr. McCoy and Captain Kirk, Chief Engineer Scott finds himself accused of murdering an exotic dancer he met in a night ...

Captain Kirk is haunted by a creature from his past when conducting a mining survey on a planet. He first encountered it as a lieutenant aboard the U.S.S. Farragut and bl ...

Rapid aging afflicts all six colonists on Gamma Hydra IV and five members of Kirk's six-man landing party - all but Chekov. With the Neutral Zone so close, suspicion fall ...

The Federation is in competition with the Klingons for an alliance with the inhabitants of Capella IV. The Capellans are a warrior tribe and there is dissension among the ...

The Enterprise is transporting several diplomatic delegations to a conference on Babel regarding the future of the mineral-rich planet Coridan. Among the passengers are S ...

The Enterprise shuttlecraft, carrying Kirk, Spock, Dr. McCoy and critically ill Federation Ambassador Nancy Hedford, encounters a mysterious energy cloud which pulls them ...

When an android takes control of the Enterprise, Kirk and his crew spend four days traveling at warp speed to an uncharted planet. When they beam down they find none othe ...

When Captain Kirk and his landing party arrive on Pyrus VII, they are met by eerie mists, a dark castle, wailing witches, zombies and a black cat. They soon learn that th ...

The U.S.S. Constellation and its crew were destroyed by a giant robot ship which consumes planets for fuel, leaving only a guilt-ridden Commodore Decker aboard the crippl ...

Kirk and a landing party beam down to what seems to be an ideal, Eden-like planet. They soon find however that the planet is ruled by a powerful computer that keeps its l ...

Beamed up during an ion storm, which causes a transporter malfunction, the landing party of Kirk, McCoy, Scotty and Uhura find themselves in a mirror universe aboard a pa ...

The Enterprise encounters a powerful energy force that has apparently killed all human life in a solar system with over one billion inhabitants. They identify the culprit ...

The Enterprise is stopped dead in its tracks by a powerful energy force that appears in the form of a human hand. Soon, a being claiming to be Apollo orders Kirk (William ...

Lately, Spock's behavior has been increasingly and unprecedentedly erratic. When McCoy finds it to be a growing medical risk, Kirk drags the truth out of him: it is the ' ...

The Enterprise traces a virus-like outbreak that seems to be traveling in a direct line across a planetary system. The next planet is home to Kirk's brother Sam, his sist ...

When an accident causes Dr. McCoy to go temporarily insane, he escapes to a strange planet. There, the search party discovers a device left by a superior, vanished civili ...

While investigating and scanning an uncharted planet, the Enterprise and its quadrant of space are subjected to a violent force that seems to cause a 'blinking out' of ev ...

The Enterprise travels to the planet Janus 6 to assist the mining colony there. Kirk, Spock and McCoy beam down to the planet where Chief Engineer Vanderberg tells of a c ...

The Enterprise is ordered to clean up the aftermath of a doomed colony on Omicron Ceti III, a planet under constant irradiation from deadly Berthold Rays. Upon arrival, h ...

On a mission to establish diplomatic relations at Star Cluster NGC321, Kirk and Spock beam down to planet Eminiar 7 to learn that its inhabitants have been at war with a ...

The Enterprise comes across the SS Botany Bay, an ancient Earth spaceship from the 20th century traveling through deep space with a group of genetically engineered humans ...

The Enterprise travels to Beta III to learn the fate of the U.S.S. Archon, gone missing a century earlier. One member of the landing party disappears, and one returns in ...

After encountering a severe ion storm, the Enterprise visits Star Base 11 for repairs. While there, Kirk files a report about the death of crewman and former friend LCDR ...

When the Enterprise is flung back in time while trying to escape the gravitational pull of a black star, they find themselves in orbit around a 1960's Earth. When they ar ...

When a reptilian alien race known as the Gorn destroys an Earth colony, the Enterprise comes under attack by the Gorn vessel. Captain Kirk soon gives chase to the Gorn sh ...

When Kirk and Sulu vanish into thin air from the bridge of the Enterprise, Spock sends a landing party to the planet below to locate them. What they find is an 18th centu ...