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THE PRIME DIRECTIVE

with emphasis on [Star Trek: Voyager]

EPISODE LIST WITH EVENTS

Titles with a link go to a page of discussion and notes devoted to the story with, for non-[Voyager] stories, a synopsis of the story. For [Voyager] stories, there is a page of discussion, with links to the Episode Index in SHIP'S LOGS and the PERSONAL LOG entry. See also [Voyager] and the Prime Directive and Main Discussion.


abbreviation: [Enterprise]
(NX-01 Enterprise)
Series 5

abbreviation: [TOS]
(USS Enterprise NCC-1701)
Series 1

abbreviation: [TNG]
(USS Enterprise NCC-1701-D)
Series 2

abbreviation: [DS9]
(Deep Space 9 station)
Series 3

abbreviation:
[Star Trek IX: Insurrection]
(USS Enterprise NCC-1701-E)

# and episode number
i.e. as throughout site
(USS Voyager NCC-74656)
Series 4

CONTENTS
order within year is approximate, as star dates are not always given on the television or film screen
late 1950s
(from October 1957 as Sputnik exists)
[Enterprise: Season 2: Carbon Creek]

Three Vulcans crash on Earth and, as the society is pre-warp, take measures to prevent humans from discovering they are extraterrestrials.
2151[Enterprise: Season 1: Dear Doctor]

In the absence of a formal directive, Captain Archer faces the dilemma of whether to cure a species that is dying naturally.
2152[Enterprise: Season 2: The Communicator]

Following a landing party's covert observation of a pre-warp civilisation, a piece of equipment is accidentally left behind (a communicator) which, along with retrieval of evidence of presence, accidentally results in cultural contamination.
2166[TOS: Season 1: A Taste Of Armageddon]

Faced with the deliberate destruction of his ship and crew to meet casualty quotas in a computer-run war, Captain Kirk forces two warring civilisations to make peace.
2166[TOS: Season 1: The Return Of The Archons]

Kirk ends the rule of Landru, a computer, which for generations has brought peace, tranquility and mindlessness to its subjects.
2167[TOS: Season 2: Mirror Mirror]

The landing party accidentally end up in a mirror universe where the Federation is a brutal empire and its officers commit genocide. As Kirk manages to return to the home universe, he sees a way to bring about the empire's fall.
2167[TOS: Season 2: The Apple]

Kirk destroys Vaal, a computer that provides an idyllic life for the planet's inhabitants, forcing the Vaalians to fend for themselves.
2167[TOS: Season 2: A Piece Of The Action]

A century ago, the Iotians' society was severely contaminated when a Starfleet crew accidentally left behind a book on the 1920's Chicago mobs. The Iotians have based their civilisation on that book. Kirk adopts the mannerisms of the period and remedies the breach of the Prime Directive by bringing together the warring factions together and imposing peace and stability.
2167[TOS: Season 2: A Private Little War]

When the Klingons illicitly arm one group of a primitive society with flintlocks, bringing them some 12 centuries in advance of normal social development, Kirk restores the balance of power by arming their enemies.
2167[TOS: Season 2: Bread And Circuses]

In a society which looks similar to Imperial Rome, Kirk refuses to sacrifice his crew to the barbarity of the gladiatorial Games. He learns that the captain of a small Federation vessel did just that in the belief that this adhered to the Prime Directive.
2167[TOS: Season 2: Patterns Of Force]

With good intentions, Federation cultural observer John Gill has re-modelled Ekosian society on that of Nazi Germany. His interference violates the Prime Directive. Also, he is made the puppet of Melakon, an evil Ekosian who plans the genocide of the "inferior" Zeon race. Kirk exposes Melakon and Gill rallies the Ekosians toward peaceful goals.
2168[TOS: Season 2: The Omega Glory]

On a primitive planet, Starfleet Captain Ronald Tracey breaks the Prime Directive by siding with one race, the Kohms, and using his phaser to give advantage against the Yangs. Kirk urges the Yangs to seek peace with the Kohms, and detains Tracey.
2364[TNG: Season 1: Justice]

When Wesley Crusher commits a minor crime on the Edo's planet, he and Captain Picard are stunned to learn that there is only one punishment for all crimes no matter how small - death. Picard decides to violate the non-interference Directive and save him, arguing that justice is not absolute.
2364[TNG: Season 1: Too Short A Season]

Starfleet hero, Admiral Jameson, has a secret - when younger he made an illegal weapons-for-hostages deal in direct violation of the Prime Directive, leading to a prolonged civil war. 
2365[TNG: Season 2: Pen Pals]

Data makes unauthorised contact with a girl named Sarjenka who lives on a pre-warp planet. With her planet being torn apart by volcanic eruptions, Data informs Picard who chooses to intervene and use Federation technology to stabilise the planet.
2366[TNG: Season 3: Who Watches The Watchers]

A rescue and repair mission for a team of anthropologists secretly studying the primitive Mintakans is accidentally observed by a Mintakan named Liko. Convinced "the Picard" is the Overseer (or god), Liko starts persuading his people to revive ancient religious beliefs. Picard refuses to masquerade as the Overseer. Instead he convinces the Mintakans that he and the Enterprise crew are humanoids like them, but just more advanced technologically.
2367[TNG: Season 4: Devil's Due]

The unhappy inhabitants of Ventax II are about to fulfil the contract their ancestors made a thousand years ago with Ardra, the she-devil. Since she gave them a thousand years of peace and prosperity, they have to become her slaves. When the beautiful female Ardra appears, her supernatural powers overawe the Ventaxians. Picard decides to intervene and, convinced that Ardra is a con artist, challenges the contract in court.
2367[TNG: Season 4: First Contact]

With the inhabitants of Malcor III about to achieve warp travel, the Federation has been conducting covert surveillance on the planet for years as the prelude to First Contact. When Riker, in native guise, is injured he is taken to a native hospital. There the doctors realise that he is an alien. Picard contravenes the non-interference protocol of the Prime Directive to accelerate First Contact and rescue Riker, but the frightened Malcorians show great unwillingness to accept that other intelligent species exist.
2369[TNG: Season 1: Captive Pursuit]

A being known as Tosk arrives from the Gamma Quadrant, born and bred as prey in a hunt to the death. When his hunters arrive, both they and the hunted are disappointed at Tosk's live capture. Despite Tosk facing the rest of his life in shameful captivity on display to be jeered at, Sisko knows that he is powerless to intervene under the Prime Directive. But Tosk's new friend, O'Brien, the station's chief of ops, decides to change the rules.
2370[TNG: Season 7: Homeward]

The Enterprise adheres to the Prime Directive and watches as a natural phenomenon renders Boraal II uninhabitable and kills the inhabitants. But Federation observer Rozhenko refuses to do nothing and instead secretly rescues some Boraalian villagers, bringing them aboard the Enterprise. Picard agrees to relocate these survivors to another planet. The intention is that, during the journey, holographic mimicry of their planet will prevent them learning about interstellar travel. But matters get complicated when one Boraalian wanders out of the holodeck.
2371[Season 1: #1&2 Caretaker]

After USS Voyager and Chakotay's Maquis ship are taken 70,000 light-years across the galaxy into the Delta Quadrant, the crews learn that a powerful being known as the Caretaker looks after the vulnerable Ocampa species, protecting them from the violent Kazon. The dying Caretaker enjoins Janeway to destroy his Array and its sophisticated technology to prevent its capture. She does so, going against the non-interference principle of the Prime Directive. In so doing she protects the Ocampa, makes an enemy of the Kazon and strands both Starfleet and Maquis crews in the Delta Quadrant.
2371[Season 1: #4 Time And Again]

On a pre-warp planet, Captain Janeway and Paris are thrown back in time to the day before a polaric energy explosion destroys the civilisation. She decides to reveal their identity and the nature of the disaster in a bid to prevent it.
2371[Season 1: #10 Prime Factors]

While guests of the Sikarians, Kim discovers a Sikarian transport device that could take Voyager a vast distance homewards. But when Janeway requests the use of it, the Voyager crew come up against the Sikarians' version of the Prime Directive. Despite this, several Voyager personnel disobey orders and obtain the device illicitly.
2372[Season 2: #29 Prototype]

Torres wants to meet the request of the an Automated Personnel Units (robot-like beings) and construct a prototype APU to serve as a template to increase their dwindling numbers as their Builders, the Pralor, are extinct. Janeway forbids her on the grounds of the Prime Directive, but the Pralor APUs kidnap her. Coerced, she constructs the prototype, but learns the APUs are at war with the Cravic APUs, and each 'race' destroyed their Builders so as to continue the war. The Pralor APUs want her new design to get around a limiting factor the Builders put into each APU. Belatedly realising the wisdom of the Prime Directive, Torres destroys the prototype.
2373[Season 3: #47 False Profits]

Upon finding two Ferengi impersonating the Holy Sages of Takar in order to exploit the primitive natives, Janeway decides to remove them and return them back to the Alpha Quadrant, even though the Ferengi are not members of the Federation and not bound by the Prime Directive. The question is: how to remove the unco-operative Ferengi without damaging the Takarians' religious beliefs?
2373[film: Star Trek IX: Insurrection]

When Picard learns that the Federation is abandoning its Prime Directive principles in order to forcibly relocate the Ba'ku people, Picard mounts an insurrection to protect them.
2373&4[Season 3&4: #68 & #69 Scorpion]

Entering the heart of Borg space which comprises thousands of solar systems, Voyager is caught up in the devastating war between the Borg and the powerful Species 8472. With the survival of her ship and crew at stake, Janeway breaches the Prime Directive and makes an alliance with the Borg. One consequence of her action is seen in [Season 4: #94 Hope And Fear].
2374[Season 4: #86 & #87 The Killing Game]

The Hirogen, a species devoted to hunting other species, capture Voyager and force the crew, under mind-control, to fight in deadly scenarios on the holodeck. Janeway mounts a resistance. A truce is called when she promises to give holotechnology to the Hirogen after Alpha Hirogen says he wants to rebuild his society, with his people to confine hunting to holograms. Though he is later killed, Janeway honours her promise and hands holotechnology to the departing Hirogen. The consequences of her Prime Directive violation are seen in [Season 7: #155 & #156 Flesh And Blood]
2374[Season 4: #89 The Omega Directive]

The Prime Directive is legally suspended in the event that any of the ultra-powerful and ultra-destructive Omega molecules are discovered. When Omega molecules are discovered a light-year from Voyager, Janeway implements Starfleet's Omega Directive.
2375[Season 4: #92 Demon]

On a Class-Y planet, known as a Demon planet for its very hostile environment, Paris and Kim come into physical contact with a mysterious metallic compound which turns out to be biomimetic. It samples their DNA and creates duplicates of the pair, though they can only live in a Demon atmosphere. As a result, it experiences sentience for the first time and argues that it deserves life. Janeway and the crew allow their DNA to be sampled, so that a duplicate 'silver blood' crew is created. What happens to the 'silver blood' crew is seen in [Season 5: #112 Course Oblivion]
2374[Season 4: #94 Hope And Fear]

An alien named Arturis, almost the last survivor of his race's assimilation by the Borg, tricks the Voyager crew into boarding a fake Starfleet prototype starship named "USS Dauntless" designed to bring them swiftly to the Alpha Quadrant by use of its advanced quantum slipstream drive. Although Janeway learns it is a trick, she and Seven are trapped on board heading for Borg space. This is Arturis' revenge for Voyager's alliance with the Borg — it had left the Borg undiminished and he blames Janeway for his people's assimilation. This story refers to events in [Season 3&4: #68 & #69 Scorpion].
2375[Season 5: #112 Course Oblivion]

The 'silver blood' duplicates created in [Season 4: #92 Demon], as they have the memories of the Voyager crew, set off in their own USS Voyager, heading for the Alpha Quadrant. But along the way, tragedy looms as they start to revert to their original form.
2375&6[Season 5&6: #120 & #121 Equinox]

Voyager encounters another Federation starship in the Delta Quadrant, the USS Equinox, but this one is under constant attack by nucleogenic lifeforms. The Equinox crew, under Captain Ransom, have been trapping the lifeforms and using their dead bodies as fuel to enhance their warp drive and hasten the journey home. This murderous breach of the Prime Directive outrages Janeway and in some ways it unhinges her. As she pursues the Equinox, and Ransom in particular, she sees what can happen when a starship captain bends the Prime Directive too far.
2376[Season 6: #127 Dragon's Teeth]

Voyager is forced to leave a network of journey-shortening subspace tunnels by the Turei who claim them as their own. Voyager takes refuge on a planet amidst the ruins of a long-dead civilisation. While on an away team, Seven revives a Vaadwaur named Gedrin from stasis where he has been for 892 years. He explains that 9 centuries ago the peaceful Vaadwaur civilisation was destroyed by an alliance of species envious of their ownership of the subspace tunnels. Janeway agrees to Gedrin's proposal of her use of the tunnels in exchange for reviving the last Vaadwaur battalion and aid to rebuild their society. But Neelix delves into history and uncovers the dark truth about the Vaadwaur.
2377[Season 7: #155 & #156 Flesh And Blood]

This story depicts an unexpected and tragic consequence of Janeway's decision in [Season 4: #86 & #87 The Killing Game] to give holotechnology to the Hirogen. The Hirogen are now indeed using holoscenarios to hunt and kill holograms, rather than real people, but they programmed the holograms to be as real as possible, and this sophistication has resulted in sentient holograms. When these holograms rebel and seek revenge, the Voyager crew are drawn into the difficult issue of hologram rights.
2377[Season 7: #168 Natural Law]

Seven and Chakotay crash their shuttle on a planet in an area bounded by an energy barrier and meet the primitive Ventu people. The pair adapt the shuttle's deflector to neutralise the barrier to send Voyager a distress call. But the barrier was established long ago to protect the Ventu from cultural contamination by the other race on the planet, the technologically advanced and warp-capable Ledosians. Now the well-meaning Ledosians plan to bring the benefits of their society to the Ventu. To ensure that the Ventu are left alone, Janeway re-establishes the energy barrier and has the Federation technology left behind destroyed. But the Ledosians may have scanned the shuttle's deflector and might eventually develop the means to lower the barrier.

 

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