UPN airs the 117th episode of Star Trek: Voyager. 
Stardate 48310.0: In Starfleet’s orbital shipyards above Mars, the new Intrepid-class vessel U.S.S. Voyager is preparing for her first launch – as is the ship’s newly-promoted Captain, Kathryn Janeway. But what Janeway doesn’t know about her new ship is that a Borg has infiltrated her crew…a Borg she will know, three years later, as Seven of Nine.
Stardate 49123.5621: In the midst of a Kazon ambush, two unexpected visitors arrive aboard Voyager – one to plant a device that will destroy the ship in three years, and another, claiming to be an individual Borg who has traveled back in time to prevent this act of sabotage.
Stardate 52861.274: Deep in the Delta Quadrant, Voyager suffers a series of major breakdowns due to temporal distortions. Just before Voyager explodes, killing all hands, Seven of Nine is “recruited” by Captain Braxton of the 29th century Federation Timeship Relativity. Her mission is to go back in time to prevent the destruction of Voyager without creating additional temporal paradoxes.
teleplay by Bryan Fuller, Nick Sagan and Michael Taylor
story by Nick Sagan
directed by Allan Eastman
music by Dennis McCarthyCast: Kate Mulgrew (Captain Kathryn Janeway), Robert Beltran (Chakotay), Roxann Biggs-Dawson (B’Elanna Torres), Robert Duncan McNeill (Tom Paris), Ethan Phillips (Neelix), Robert Picardo (The Doctor), Jeri Ryan (Seven of Nine), Tim Russ (Tuvok), Garrett Wang (Ensign Harry Kim), Bruce McGill (Captain Braxton), Dakin Matthews (Admiral Patterson), Jay Karnes (Lt. Ducane), Josh Clark (Lt. Carey)
Original title: Time Bomb
LogBook entry by Earl Green