“Non Sequitur” is episode five of season two of Star Trek: Voyager.
Harry is asleep, hearing Captain Janeway calling his shuttlecraft and telling him to prepare for emergency transport. Only, it turns out he is asleep in bed and not in a shuttlecraft. A woman wakes him and he recognises her as Libby. He is in an apartment in San Francisco.
Harry is confused and Libby asks him what’s wrong. He says it’s really her and she reminds him about an appointment he has at 9:00; he’s been obsessing about it all week, so should get dressed. Harry asks the date, and it’s the one he expected. Only, not the present he expected. He muses that it can’t be a dream, because it’s too clear, but it could be a holodeck simulation, hallucination or a trick. The last thing he remembers is piloting a shuttle on the way back to Voyager. He announces his name, rank and craft to Libby, asking where he is. She thinks it isn’t funny, mentioning Voyager; the memorial service was only two weeks ago and Danny was Harry’s best friend. Libby is done with the conversation; they both have work.
Outside, Harry is greeted by the owner of a coffee shop who has Harry’s coffee. He knows that it’s a big day for Harry, regarding the ship Harry is designing. He promised to give the man, Cosimo, a model. Harry wants to know how long he has been coming here for coffee. Since he left the Academy. And it turns out that Libby is now Harry’s fiancée.
Another Starfleet officer, Lt. Lasca, greets Harry; they need to head to headquarters. In a meeting room, whilst several people are waiting, Lasca asks about the schematic for the warp core that Harry was supposed to bring., Which Harry hasn’t, not knowing he was supposed to. When Admiral Strickler arrives, the meeting gets underway. It is regarding the new Yellowstone class runabout and Lasca introduces Harry. Who struggles. The admiral asks if there’s a problem and Harry says there is. Yes, he is ill. He’d like to continue this at a later date. The admiral won’t be back for three weeks and Lasca tells Harry he had better be dying.
Harry heads to his office and checks his service record. He requested duty on Voyager, but it was denied. He requested to be transferred to the Starfleet Engineering Corps, which was accepted, and Harry received the Cochrane Medal for Excellence for Outstanding Advancements in Warp Theory. The computer has no records of temporal anomalies and, when Harry requests to see what happened to Voyager, that needs a higher clearance. Which, as Harry remembers serving on Voyager, he can enter. The ops officer was Ensign Daniel Bird.
Harry returns home – but has to ask Cosimo where he lives. He says that he isn’t feeling well but Cosimo reassures him that everything is going to be fine. Libby, when Harry gets home, wants to know what happened. Harry isn’t sure. That night, Harry gets out of bed to check on things. Tom Paris wasn’t serving on the Voyager crew; he was convicted of treason and has since been paroled. Marseilles, France is Tom’s last known whereabouts.
Libby has got up by this time and wants to know what is going on, Harry tells her nothing is going on, but she doesn’t believe him. He’s been acting strange and Lasca contacted her as well. Harry says it’s hard to explain, and he wants to tell her, but he needs Libby to trust him. She says she does. So, Harry says he isn’t who she thinks he is and this isn’t supposed to be happening because he doesn’t belong here. Not unexpectedly, Libby thinks Harry is talking about them being engaged. That’s not what Harry meant; he’s from another reality. Libby is concerned and suggests Harry see a professional. There’s someone else he has to see first.
Which is Tom Paris. Harry wants Tom’s help. There are problems, though; at best Harry is sounding crazy. At worst, he is accessing files he has no authority to and speaking to a known traitor and Maquis sympathiser. Whilst working on a new starship design. That doesn’t look good. It may be possible for Harry to return, but it’s going to be risky.