Episode Overview

TREKCORE > TOS > EPISODES > Season 2 Overview

 
 2x01 AMOK TIME

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Spock undergoes a Vulcan stage of life known as the Pon Farr where he is forced to mate with his bride, T'Pring. Trouble starts when T'Pring announces she would rather marry Stonn, a full Vulcan. T'Pring evokes her right to have Spock fight for her. However, she chooses Kirk as her champion, leaving Spock with a devastating choice...
   
 2x02 WHO MOURNS FOR ADONAIS?

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The Enterprise crew are held captive by a powerful being who claims to be the ancient Greek God Apollo. The being demands the crew transfer down to the planet so they may worship him. Attempting to leave, Kirk soon discovers that he is the target of all the "God"s wrath and anger.
   
 2x03 THE CHANGELING

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The Enterprise is sent to investigate the destruction of a star system and its four billion inhabitants. When it arrives at the coordinates, the Enterprise is threatened by a probe calling itself Nomad. When Kirk identifies himself by name, Nomad mistakes him it's creator.
   
 2x04 MIRROR, MIRROR

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Kirk, Scott, McCoy and Uhura enter a parallel universe where the crew of the Enterprise act as sadistic savages. Unbeknownst to them, their evil counterparts have entered their "normal" universe and seem determined to wreak havoc.
   
 2x05 THE APPLE

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When a landing party beams down to the planet Gamma Trianguli VI, they find what appears to be an idyllic paradise. They quickly discover, however, that the planet is deadly, sporting plants that shoot thorns, rocks that explode, and incredibly accurate lightning bolts.
   
 2x06 THE DOOMSDAY MACHINE

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Investigating the destruction of several planetary systems, the Enterprise discovers a crippled starship floating in space. Commodore Decker is the only one left on the ship and is soon found to be less than sound-minded when he takes control of the Enterprise and exposes it to lethal danger.
   
 2x07 CATSPAW

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Kirk, Spock and McCoy beam down to planet Pyris VII to discover Scotty and Sulu have been transformed into mindless zombies by beings known as Korob and Sylvia. The trio are taken prisoner and soon demonstrated the extend of their captors' powers when the Enterprise is subjected to immense heat.
   
 2x08 I, MUDD

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The Enterprise is commandeered by an android masquerading as a Starfleet officer. Calling himself "Norman", the android takes the ship to a planet where the crew's old nemesis, Harry Mudd, has named himself leader of the colony of androids.
   
 2x09 METAMORPHOSIS

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Escorting Federation Commissioner Nancy Hedford for emergency medical treatment, the Galileo shuttlecraft is pulled off course by a mysterious energy entity which deposits it on a planet where none other than Warp Drive inventor Zephram Cochrane is living.
   
 2x10 JOURNEY TO BABEL

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The Enterprise plays host to Federation ambassadors on their way to the Babel Conference, including Sarek of Vulcan -- Mr. Spock's father. En route to Babel, Tellarite ambassador Gav is murdered and Sarek is the prime suspect, but he soon suffers a Vulcan heart attack. Soon thereafter, Captain Kirk is critically injured as well leaving Mr. Spock torn between his duties as a Starfleet officer and his duties as a son.
   
 2x11 FRIDAY'S CHILD

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Sent to negotiate a mining treaty on planet Capella IV, Kirk discovers a Klingon agent has infiltrated the culture and become embroiled in a deadly conflict. Kirk and Spock must reveal the Klingon's involvement before it's too late and the planet plunges into permanent civil war.
   
 2x12 THE DEADLY YEARS

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An Enterprise landing party finds an entire research team on Gamma Hydra IV suffering from rapid aging. Soon thereafter, Captain Kirk, Mr. Spock, Dr. McCoy, Scotty and Lieutenant Galway begin to suffer from the affliction as well. Concerned about his command ability, Commodore Stocker convenes a competency hearing against Kirk with Mr. Spock as the prosecutor.
   
 2x13 OBSESSION

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When an entire landing party is killed, Captain Kirk leads the Enterprise on a mission to destroy a malevolent entity that nearly destroyed him eleven years earlier.
   
 2x14 WOLF IN THE FOLD

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Scotty is implicated in a series of murders on planet Argelius II. Hengist, the local authority, wants to arrest Scotty, but Kirk intervenes and seeks the help of a priestess to clear his Engineer's name. Unfortunately, she's killed and once more the blame seems to fall at Scotty's feet...
   
 2x15 THE TROUBLE WITH TRIBBLES

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The Enterprise crew must contend with secret agents, insulting Klingons and furry Tribbles on a mission to protect a shipment of quadrotriticale stored aboard Space Station K-7.
   
 2x16 THE GAMESTERS OF TRISKELION

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Captain Kirk, Chekov and Uhura are kidnapped from the Enterprise and held captive on the planet Triskelion where they are forced to participate in barbaric exhibitions for the amusement of the unseen "Providers".
   
 2x17 A PIECE OF THE ACTION

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Captain Kirk, Mr. Spock and Dr. McCoy beam down to the planet Sigma Iotia to find the culture contaminated by a previous visit by the U.S.S. Horizon and modelled after Chicago's gangs of the 1920s.
   
 2x18 THE IMMUNITY SYNDROME

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After losing contact with the U.S.S. Intrepid and the Gamma 7-A star system, the Enterprise encounters a giant amoeba that is preparing to reproduce.
   
 2x19 A PRIVATE LITTLE WAR

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On a planet Captain Kirk had visited thirteen years earlier, he finds that the Klingons have been arming one side of the planet's natives and disrupting the balance of power. Meanwhile, injured on the planet's surface, Mr. Spock fights for his life in sick-bay.
   
 2x20 RETURN TO TOMORROW

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Captain Kirk, Mr. Spock and Dr. Ann Mulhall volunteer their bodies to three super-beings so they can experience corporeal form once again, but one of the beings soon refuses to give up Mr. Spock's body.
   
 2x21 PATTERNS OF FORCE

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The Enterprise finds that Federation historian John Gill has instituted Nazi-ism on the planet Ekos.
   
 2x22 BY ANY OTHER NAME

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The Enterprise is captured by extragalactic aliens known as the Kelvans who plan to use the ship to return to their own galaxy; a voyage that will take over 300 years.
   
 2x23 THE OMEGA GLORY

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The Enterprise encounters the U.S.S. Exeter abandoned in orbit of Omega IV. After boarding the ship, the landing party finds that the crew has been killed by a mysterious virus and that the ship's captain may be violating the Prime Directive.
   
 2x24 THE ULTIMATE COMPUTER

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The Enterprise is outfitted with the new experimental multitronic unit, the M-5, a computer that may threaten the future of human exploration of space, but the experiment soon takes a terrible turn for the worse.
   
 2x25 BREAD AND CIRCUSES

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Captain Kirk, Mr. Spock and Dr. McCoy are taken prisoner on planet 892-IV where they find that the culture has taken a form very similar to ancient Rome.
   
 2x26 ASSIGNMENT: EARTH

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The Enterprise travels through time to the year 1968 to fulfil its role in history when they encounter the mysterious Gary Seven, a space traveller with an unknown intent for an orbital nuclear warhead.