Archer, T'Pol and T'Pau attempt to take a sacred, but controversial artifact back to the Vulcan High Council, in hopes of settling an internal struggle going on among the Vulcan people. Meanwhile, Trip and Soval take Enterprise to Andoria to convince Shran to help them stop a war.moreless
After T'Pol is contacted by the Vulcan High Command, Archer, Mayweather and T'Pol travel to an arctic world to apprehend a fugitive. The mission takes a dangerous turn when T'Pol begins to have flashbacks that suggest the events she remembers about a former mission may not accurately relate to what happened.moreless
Tucker and Reed set out on a mission in a shuttlepod, as Enterprise is busy investigating an asteroid field. Disaster strikes while the pair are away, leaving the shuttlepod damaged and the warp drive inoperable. They manage to make it back to the rendezvous coordinates only to discover that Enterprise has apparently been destroyed. With the ship seemingly no more, the pair are left abandoned in the middle of nowhere with only a few days of air remaining.moreless
A means of direct communication is established with Voyager allowing each crew member to speak with family and friends. The Doctor sends a holo-novel for publication based on a lost starship with a doctor who is treated like a slave, which causes controversy among the members of the ship.
The renegade holograms abduct B'Elanna in hopes that she will be able to make their field generators fully functional. Meanwhile, Voyager secretly trails two Hirogen ships as they attempt to track and hunt down the holograms, in order to rescue B'Elanna.
Seven's life is at risk when her cortical implant - essential for regulating her implants and balancing them with her human physiology - starts to degrade. As Captain Janeway and the Doctor try to come up with a way to help her, Icheb realises he may have to take matters into his own hands.
When Voyager shuts down main power and interrupts the regeneration cycle of the Borg children, Neelix keeps them entertained by telling the story of why a certain section of Deck 12 is off-limits, and how the space-dwelling creature that lives there came aboard and "haunted" the ship.
Captain Janeway relates the story of her distant ancestor, Shannon O'Donnell (Kate Mulgrew in a dual role), and her involvement in the construction of Earth's "Millennium Gate". She meets and falls in love with Henry Janeway - the one man standing in the way of the Gate's construction.
When an alien attaches itself to B'Elanna's nervous system, the Doctor enlists the help of a holographic recreation of an expert. However, when B'Elanna learns that the expert is a Cardassian that performed immoral medical experiments during the occupation, she refuses treatment.
After encountering a piece of Borg technology known as a Vinculum which connects drone's minds together, Seven of Nine begins exhibiting the personalities of people that she assimilated as a member of the collective. Soon, they become so strong that they may overwhelm Seven's own personality.
Crew morale hits an all-time low when Voyager must spend two years crossing an expanse devoid of any stars or signs of life. As Captain Janeway is forced to reflect on the choice she made stranding her crew in the Delta Quadrant, little does she know, she will face a similar decision when Voyager ends up in the middle of a serious conflict.