TREKCORE > VOY > EPISODES > ENDGAME > Synopsis

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It is the 10th anniversary of the U.S.S. Voyager's triumphant return to Earth after 23 years in the Delta Quadrant. Kathryn Janeway is an admiral, Harry Kim is a starship captain, Tom Paris is a full-time holonovelist, and the Doctor is married to a human woman and has named himself "Joe." At a reunion party, Admiral Janeway talks with B'Elanna Torres, who is now Federation Liaison to the Klingon High Council, about arranging a political favor for a Klingon named Korath. Later, the admiral serves as guest lecturer in Commander Reginald Barclay's Starfleet Academy class about the Borg, but when a cadet asks a question about Seven of Nine, Janeway evades the subject. She's pulled away from class to receive a message from Ensign Miral Paris, the daughter of Torres and Paris, who is on a secret mission to arrange some sort of exchange between the admiral and Korath.

Admiral Janeway stops to say goodbye to Tuvok at his hospital room where he is suffering a neurological disorder that has destroyed his mind, telling him she may never come back. She then has the Doctor over to her apartment and asks him to procure for her a supply of Chronexaline, an experimental drug that can protect biomatter from tachyon radiation, for "classified" reasons. She arranges to get some downloaded information and a shuttle from Commander Barclay, and finally she visits Chakotay's gravesite, promising that when she's through things will be better for everyone.

Twenty-six years earlier, when Voyager is still in the Delta Quadrant, the pregnant Torres is having repeated occurrences of false labor, and Seven of Nine is developing a serious romance with Chakotay. Tuvok is concerned when he is defeated by Icheb in Kal-toh, so he visits the Doctor and learns his neurological condition is slowly deteriorating. Seven is playing Kadis-Kot with Neelix by remote when she is interrupted by the detection of high neutrino emissions indicative of a wormhole. Seven later tells the crew that the center of a nearby nebula may contain hundreds of wormholes, any of which could lead to the Alpha Quadrant.

Back in the future, the Doctor visits Tuvok, who has become increasingly agitated about the "disappearance" of Admiral Janeway, and blurts out that she's never coming back. Curious, the Doctor visits Commander Barclay to get in touch with Janeway, and Barclay says simply that she's out of town. But when Barclay starts stammering, which he hasn't done in years, the Doctor knows he's hiding something. Meanwhile Admiral Janeway has taken the shuttle to a moon where she meets up with Miral Paris, who introduces her to the House of Koroth. After dismissing the Ensign, Janeway meets with Korath, who has something for her but demands information on her shuttle's shield modifications. The admiral won't go beyond the original terms of their agreement, so she is shown out.

In the present time, Voyager enters the murky nebula and barely misses colliding with a Borg Cube. Captain Janeway orders the ship out of the nebula, refusing to go back despite Ensign Kim's appeal to not give up on those wormholes. Later, Seven asks the Doctor to perform a procedure he devised to remove a failsafe device in her cortical node, so she can pursue more intimate relationships — specifically, with Chakotay.

Admiral Janeway tells Korath she's "reconsidered" his offer — she'll give him the shield emitter, but first she has to inspect the device he's offering. Korath allows her to scan the device, whereupon Janeway attaches a transport enhancer to the device and beams it and herself to the shuttle. The enraged Klingons send one of their futuristic ships to fire upon her, but Janeway deploys a new armor technology around the shuttle that absorbs the phaser blasts. She jumps to warp and escapes, but when she arrives at her destination, she is met with the Federation starship Rhode Island, commanded by Captain Kim, who orders her to stand down. Kim has learned of her plan from the Doctor, who coaxed it out of Barclay, but Janeway insists the consequences are too great if she doesn't follow through, and asks him to trust her judgment one last time. Kim helps her prepare Korath's device — a chrono-deflector which is now affixed on top of the shuttle — and realizes it will burn itself out with one use. Janeway already assumed this would be a one-way trip. Unable to talk her out of the scheme, Kim beams back to his ship, and Janeway activates the chrono-deflector. Two Klingon ships decloak and begin firing, and Janeway is unable to deploy the ablative armor. The Rhode Island comes back and distracts the Klingons while Janeway activates a tachyon pulse.

Meanwhile on the present-day Voyager, Seven of Nine and Chakotay are having their first kiss when they are summoned to the Bridge. Some sort of temporal rift is forming in front of the ship, and Klingon weapons fire is being detected. But then a Federation vessel comes through the rift and hails Voyager. Captain Janeway sees the older version of herself on the viewscreen, ordering her to emit an anti-tachyon pulse from the deflector to close the rift before the Klingons come through. Startled, the Captain hesitantly fulfills that order and seals the rift, then asks what the hell is going on. Admiral Janeway says she's come to bring Voyager home. What she doesn't realize is that the Borg Queen is monitoring her transmission.

Admiral Janeway beams aboard Voyager and meets her younger self, and is moved to see a healthy Tuvok and Chakotay again. In Janeway's Ready Room, the Admiral reveals to the Captain that Voyager did eventually make it back to Earth after another 16 years, and the ship became a museum on the grounds of the Presidio. But the Admiral came to tell Captain Janeway to take Voyager back to the nebula as a shortcut home, using technology she brought to get past the Borg. The Captain wonders why she would want to tamper with the time-line, but the Admiral asks for her trust. In Sickbay, the Doctor confirms that the Admiral is genetically identical to the Captain, but 26 years older. He has also detected an implant in her brain, which the Admiral reveals the Doctor himself invented in the future to allow her to pilot a vessel with a neural interface. Seven of Nine enters — to an emotional greeting from the Admiral — reporting that the armor and weapons technology on the shuttle can be adapted for Voyager, and the Captain orders it done.

The crew busily upgrades the ship with the futuristic technology, and feels optimistic they might actually make it home this time. When Seven takes a break to regenerate, she is visited in her mind by the Borg Queen, who warns her not to let Voyager return to the nebula or it will be destroyed. Seven wakes up violently in her sparking alcove, and upon being cared for by the Doctor, reports the Queen's warning to the two Janeways. The Admiral insists the Borg are 30 years behind compared to the technology and tactics she's brought, so the Captain maintains course for the nebula.

When Voyager approaches the murky nebula, Captain Janeway orders the armor deployed, and the ship's hull is completely covered. Three Borg Cubes engage the starship, but their weapons fire is repelled. They scan the ship, then focus their fire on a specific section of the armor which weakens it. Voyager responds with the launch of transphasic torpedoes, which completely obliterate the Cubes with one or two shots each. Voyager then finds the center of the nebula, where the crew sees a massive Borg structure. Admiral Janeway orders Paris to enter an aperture in the structure, but Captain Janeway belays that order until she gets an explanation. Seven of Nine reveals the structure is a transwarp hub, one of only six in the galaxy. Angered that the Admiral didn't tell her about this, she orders the ship out of the nebula.

The crew learns the hub connects thousands of transwarp conduits to endpoints in every quadrant of the galaxy, perhaps the most significant tactical advantage the Borg have. Captain Janeway wants to know how to destroy it. But Admiral Janeway strongly objects to any such attempt, and insists on taking the ship home before the Collective can counteract the armor and weapons. The Captain pulls the Admiral aside and wonders how she got so cynical, arguing that they have a chance to save millions of lives. The Admiral reminds her of the decision that got her ship stranded in the first place, putting the lives of strangers ahead of her own crew. The Captain is willing to make the same kind of decision, but then the Admiral tells her that Seven of Nine is going to die. And her husband, Chakotay, will never be the same, and neither will Janeway. Along with 22 other casualties, Tuvok will succumb to a degenerative neurological condition that he hasn't told her about. She can prevent all that and get home today safe and sound.

Captain Janeway approaches Tuvok about his condition, and learns he can only be cured by mind-melding with members of his own family. But she also learns that Tuvok would rather destroy the hub than save himself. Even Seven of Nine refuses to listen to the Admiral's argument. In fact, the entire crew agrees that they'll allow their journey to take longer if they can accomplish something they believe in. The Admiral had forgotten how much the crew loved being together, and admits she was wrong to talk the Captain out of something she had set her mind to. But then the Captain proposes that there might be a way to "have their cake and eat it too."

The Admiral boards the shuttle, and the Captain injects her with a hypospray. The Admiral takes the shuttle through one of the hub's apertures and enters the Unicomplex where the Borg Queen resides. Using her neural interface, she enters the mind of the Borg Queen and tries to make a deal with her, in order to save the Voyager crew from themselves. She wants the Queen to send a Cube to tractor Voyager back to the Alpha Quadrant, in exchange for telling her how to adapt to the transphasic torpedoes. But the Queen detects the Admiral's shuttle, beams her over and injects her with assimilation tubules. Meanwhile Voyager deploys its armor and enters one of the transwarp hub's apertures. While the Admiral is being assimilated, the Queen orders vessels to intercept Voyager. But she realizes she no longer has control over the Collective. She realizes that when Admiral Janeway was assimilated, she released a neurolytic pathogen into the Collective, designed to bring "chaos to order." While in a transwarp corridor, Voyager launches its transphasic weapons and begins to collapse the transwarp hub. The Borg Queen, meanwhile, begins to literally lose parts of her own body as her Unicomplex begins to crumble in an array of explosions.

In the Alpha Quadrant, Admiral Paris and the present-day Barclay detect a transwarp aperture opening up less than a light-year from Earth, and every ship in range is ordered to converge there. In the collapsing transwarp corridor, a Borg Sphere bears down on Voyager as its armor begins to fail. Captain Janeway orders Lt. Paris to adjust course. The Borg Sphere emerges into the Alpha Quadrant and Starfleet vessels begin firing upon it. But then it explodes in a spectacular fireball, and Voyager emerges from within the debris intact. Admiral Paris welcomes Janeway back home, and she promises him a full report. Meanwhile, a baby is being born in Sickbay — Tom and B'Elanna's daughter. Paris is dismissed from his duties so that he can meet his new child and Captain Janeway orders Chakotay to take the helm and set a course for home. The Starfleet armada then escorts the long-lost Voyager back to Earth.