'Endgame' opens with a news clip on a TV screen, showing Voyager's homecoming. It's a very elaborate clip, even including a gorgeous shot of Voyager flying by the Golden Gate bridge. We learn that this is actually an old archive clip, and it is now 23 years after we last saw the Voyager crew.All of the characters have gone through large changes. Harry Kim is now Captain, and Miral Paris, the daughter of Tom Paris and B'Elanna Torres, has grown into a competent Starfleet officer. Previously it was also reported that the episode will featured an aged Tuvok in an asylum, claiming Janeway is an impostor.
Neelix of course is not present on Earth, as he left Voyager before the ship returns home (in next week's episode, 'Homestead'). However, Neelix will make a short appearance a bit later in the episode, when we see him playing a game with Seven of Nine over a viewscreen, back in the original Voyager timeline.
One character who outwardly hasn't changed a bit is the Doctor, who as a hologram of course doesn't age. Evidently he has been able to get over Seven of Nine after all these years, as we meet him together with his blonde bride Lana. The Doctor also finally has a name - when he got married to Lana, he decided he couldn't marry without one, and so settled for the name of Lana's grandfather: Joe.
Two characters who we will not be seeing in this first part of the episode are Seven of Nine and Chakotay. While still in the Delta Quadrant, the two got married aboard Voyager. Unfortunately, shortly thereafter Seven was injured on an away mission, and while she was able to make it back to Voyager, she there died in the arms of her husband, Chakotay. Now, Chakotay himself is also dead, as we learn when Janeway comes to visit Chakotay's grave.
Janeway herself, who always remained unmarried, is now an Admiral. As she comes to visit Chakotay's grave, located atop a hillside with a large tree looming over it, we sense the deep friendship that existed between the two. She tells him that what she is going to do now she is going to do as much for him as for herself.
What Janeway is planning to do is nothing less than travel back in time to help her past crew and self beat the Borg Queen and get home early. In order to do this, she sends Miral Paris to the Klingon Empire to obtain a special temporal device.
In exchange for the device, Janeway promises to get the Klingon she negotiates with on the High Council, but he demands more from Janeway - experimental shield technology that Voyager developed on its way back from the Delta Quadrant and that is almost impenetrable. Janeway is not prepared to give him that, and so she is forced to simply steal the temporal device away from the Klingons.
Admiral Janeway travels back into time, and warns the younger Captain Janeway about what is going to happen with Seven. She tells her that after Seven's death, Chakotay will never be the same anymore, and neither will Janeway herself. After hearing this, Captain Janeway decides she has to go home now, and Admiral Janeway joins the crew to help them in this endeavour.
Before going home, a massive battle ensues with the Borg Queen. In the end, Voyager is able to beat the Borg and the Queen perishes - but Admiral Janeway is with her, and dies as well.
Thanks to Admiral Janeway's sacrifice, Voyager is able to return to Earth, where they are greeted by an awaiting Admiral Paris and Lieutenant Barclay. After seven years of exploring the Delta Quadrant and seeking out ways to get her ship home safely, Captain Janeway has finally fulfilled the promise she made to her crew in 'Caretaker.' She got them home.
--------------------------------------------------------------------------------When the 'Endgame' synopsis was published several days ago, many fans wondered about the role of Tuvok in the finale, who was shown in a mental hospital in the recent Voyager finale promo. Thanks to one of our sources, we are able to provide the first details of this sub-plot.
In the original timeline, it took the U.S.S. Voyager 16 years to come home. During this time, Chakotay married Seven and subsequently lost her after an unsuccessful away mission. In addition, Voyager lost another 20-something crewmembers, while Tuvok became afflicted with a serious brain ailment. In the initial stages of the disease, Tuvok could have been cured by mind-melding with one of his family members, but without one present, he slowly descended into insanity.
As we see Tuvok in the future, seven years after Voyager's homecoming and 23 years after the last time we saw Captain Janeway on-screen, we see Tuvok being treated in a mental institution. Admiral Janeway had been visting him every week, not wanting to leave her old friend completely alone. In the finale, we see a touching scene in which she visits Tuvok to say goodbye before going on her journey to the past.
Though Tuvok is insane, he still believes he is able to think logically. From the fact that Janeway visits him on another day of the week than usual, he concludes that Janeway has to be an imposter, and tells her that logic dictates she is not who she claims to be. Janeway leaves the mental institution, and shortly thereafter travels back in time for the sake of her crew - to save Seven, Tuvok, and the many crewmembers who died on the long journey home, and to preserve her good friend Chakotay's happiness.
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�The question here is, 'Does Janeway die?' Answer: YES and NO.�
�Admiral Janeway sacrifices herself to save Captain Janeway when she is held captive by the Borg Queen.�
�Janeway gets the transwarp conduit and is installs it on Voyager. They open a conduit to Earth. Before she leaves the Borg Queen, Janeway infects her with the Pathogen. The Queen starts to die.�
�Voyager are on route to Earth with a fleet of Borg vessels following them. They tell the Pathfinder project to get an armada together for their return.�
�As Voyager emerges out of the conduit, it flies by a sea of starfleet ships. Once out of the way, all the ships fire with some new torpeedos and destroy the Borg Fleet and the conduit.�
�Voyager is escorted back to Earth. The penaltimate scene is when B'Elanna is having the baby (like in the trailer).�
�The final line is 'Set a course for home'. (by Janeway) The camera pans out of the bridge and showing Voyager flying back to Earth with a swarm of Starfleet ships.�