Star Trek: Voyager - Season 5

Stardate: 52081.2 - Voyager enters a desolate expanse of space where no stars are visible and will take two years to cross. The lack of starlight causes morale issues with the crew, and Janeway questions the choices that stranded her crew in the Delta Quadrant so far from home. They encounter two mysterious alien races who may be at war with each other. Janeway comes to the aid of one of them.

A transporter accident merges some of Seven Of Nine's Borg nanoprobes with the Doctor's 29th Century moble holo-emitter during an away mission, creating a 29th Century super-Borg drone hybrid. Seven discovers her maternal nature as she raises and educates the young drone. Captain Janeway must decide how to deal with the potential danger to all non-borg life.

Tom Paris designs a new type of shuttlecraft named the "Delta Flyer" with Borg and Starfleet technologies to retrieve a Starfleet probe stuck in a giant planet's hazardous atmosphere and gravity well before aliens do. Torres exhibits reckless behavior by engaging in dangerous holodeck programs, such as orbital sky diving; her erratic behavior over several months comes to a peak and alarms her crewmates.

The crew of Voyager discovers a simulation of San Francisco's Starfleet Headquarters being run by Species 8472 and used to practice launching an assault on Earth and the Alpha Quadrant. Species 8472 shape-shift into human form using regular doses of drugs.

While Voyager searches for the crew of the crashed Delta Flyer carrying Tuvok, Paris, and Ensign Samantha Wildman, Neelix must keep Samantha's daughter Naomi occupied. He tries to amuse her with a magical "holonovel" about forest creatures called Flotter and Trevis. When it is discovered that Samantha is badly injured, Neelix must decide how much he should tell Naomi in an attempt to protect her feelings.

Voyager uses new quantum slipstream technology in an attempt to return home, but a miscalculation by Kim causes the ship to crash into an ice planet. Fifteen years later, the sole survivors, Chakotay and Kim, have resigned from Starfleet and attempt to alter history to save the ship from disaster before Starfleet can stop them. They steal the Delta Flyer to send a message back in time and avert the catastrophe. However, Captain Geordi LaForge is determined to stop them at all costs.

Voyager encounters a Borg cube's debris field containing technology called a Vinculum, a device that connects all the drone's minds. The device causes Seven of Nine to exhibit multiple personalities of people she assimilated as a member of the collective, including a Klingon, a Ferengi, a Vulcan, and a human. Soon, they become so strong that they may overwhelm Seven's own personality.

A dying alien organism attaches itself to B'Elanna's nervous system, and the Doctor doesn't know how to treat her. He enlists the help of a holographic recreation of the Cardassian Dr. Crell Mossett, an exobiology specialist and war criminal, to save her life. B'Elanna refuses all treatment when the Bajoran crew informs her that Crell was responsible for sadistic war crimes during the occupation. The Doctor experiences a moral quandary about using and retaining Crell's program.

The crew of Voyager discovers a strange ocean world in space and offers to help the inhabitants find out why the ocean is losing water to space. They find the forcefield maintaining the planet's integrity is breaking down. Tom Paris directly disobeys orders in an attempt to save the planet, which results in his demotion to Ensign and being placed in the brig for thirty days. Paris tells the story of this episode in a letter for his father to pass the time in the ship's brig. When first encountering the world, Paris interrupts Kim in the middle of his Chaotica holodeck adventure.

While traveling through Devore space, Captain Janeway must hide all telepaths on board in transporter stasis as telepathy is illegal under Devore law. This includes two families of alien telepathic refugees rescued by the ship's crew. The Devore commander boards and inspects Voyager numerous times during their passage through that area of space. Sometime later, he returns in a small shuttle and requests asylum wishing to defect.

The Doctor discovers evidence that his short-term memory files may have been tampered with and altered with some events deleted. He launches an investigation into whom or what could be responsible and is shocked at who it is and why they're doing it. The Doctor recalls the death of crew member Jetal and believes he was responsible.
 

Chaos erupts when aliens from the Fifth Dimension interpret Lt. Paris' "Captain Proton" holographic novel as reality. These photonic energy life forms mistake the characters in Tom's holonovel for real people and a threat. The holodeck characters interpret this as an attack, and soon Dr. Chaotica tries to wipe them out. The only person that can stop him is Captain Janeway in the role of Queen Arachnia of the Spider People.

When the shuttle carrying Tuvok, Paris, and the Doctor crashes on a deserted planet pulled down by its intense gravity, they wait to be rescued. This is a temporally-distorted area of space. From their perspective, many weeks have passed with no contact from Voyager, while onboard, only a few hours have passed as the crew plan a rescue attempt. The three are stranded with an alien woman who falls in love with Tuvok, and he finds himself somewhat attracted to her.

After five years, discovering a wormhole leading directly to Alpha Quadrant and Earth elates the crew beyond belief, but Seven Of Nine remains unconvinced that this is real. She suspects there is something wrong with how quickly and easily the Voyager's crew accepts the appearance of the phenomenon. To help her cause, she recruits Naomi Wildman, the Doctor, and an alien pilot named Qatai to stop the ship from entering and from being digested by a large bioplasmic space-dwelling lifeform.

Stardate: 52619.2 - After defeating a Borg scout ship, Captain Janeway decides to launch an attack on another damaged Sphere to steal a trans-warp coil (Borg propulsion technology). However, as the crew prepares for their heist, the Borg Queen is secretly aware of the entire plan. During the mission, Seven of Nine's loyalty becomes divided between the Borg and Voyager and is lured back to the Borg collective by the Queen in exchange for the crew's safety. 
 

After defeating a Borg ship, Captain Janeway decides to launch an attack to steal a trans-warp coil to shorten Voyager's journey home. The Borg detect her plan and access Seven Of Nine's neural transceiver to deliver an ultimatum: rejoin the collective or the ship and its crew will be assimilated. The ship will be guaranteed safe passage through Borg space if she agrees. After she agrees to rejoin the Borg Collective, the Borg Queen attempts to put her to work helping the Borg. Janeway launches a rescue mission to save Seven of Nine from being totally assimilated by the Borg.

Ensign Kim breaks Starfleet medical rules involving contact with unknown alien species, putting Voyager in possible medical jeopardy. Without medical clearance, Kim involves himself in a love affair with an exotic member of the Varo species. Problems arise when they become biochemically interdependent after the incident.
 

Stardate: 52586.3 After Paris and Torres wed, the ship and its crew start to disintegrate on the molecular level due to subspace radiation caused by their new enhanced warp drive. As Voyager crew members begin dying, they make a startling discovery about their true identities. They are not the real Voyager. Every member of the crew and even Voyager itself are biomimetic duplicates from the "Demon class" planet visited months ago in the episode "Demon" (S04E24).

When Voyager is trapped in "chaotic space," an area where the laws of physics are in a state of flux, Chakotay begins hearing and seeing things. The telepathic aliens living inside the space are trying to contact the ship. However, prolonged communication may leave him insane or braindead. In their first attempt, Chakotay was boxing on the holodeck. The aliens induced further hallucinations of him boxing as "The Maquis Mauler," fighting Delta Quadrant's champion "Kid Chaos." Ultimately, the aliens help Voyager safely leave "chaotic space."

A group of extremely intelligent aliens offers to help Voyager escape from a race of bounty hunters known as the Hazari, in exchange for Seven of Nine.

Voyager encounters a damaged and adrift Malon freighter in danger of releasing deadly theta radiation into that sector of space and rescues two crew members. Captain Janeway sends a repair crew to try and contain the radiation spread. Before they embark on the mission, the two crewmen warn them about the "Angel of Decay" that wreaks havoc aboard the ship.

The Doctor teaches Seven Of Nine about human behavior and how humans interact with each other while dating. The Doctor learns a bit about his own possible humanity during the lessons. After her disastrous first date with a crew member, the Doctor personally guides her, but he soon realizes he is falling in love with her. Meanwhile, Neelix guides an ambassador of a monastic colony through the ship, unwittingly creating a potentially embarrassing situation for the ambassador when he requests forbidden food and drink.

Captain Janeway recalls a 21st-century ancestor Shannon O'Donnel, involved in creating a seminal self-contained biosphere called the Millennium Gate on Earth on New Year's Eve 2000. O'Donnel must convince the last holdout, local bookstore owner Henry Janeway to approve the plan.

When Voyager is destroyed, Captain Braxton of the 29th Century Timeship Relativity recruits Seven of Nine to travel back in time and find who planted the "temporal disruptor." However, to save Voyager, she must do this without being discovered by the past Janeway.

While Kim is serving as commander of Voyager, the ship receives a distress signal. When the away team, including the Doctor, goes to a planet searching for someone needing assistance, they find a mysterious object with artificial intelligence. After Kim beams the device onboard, the crew discovers it to be an intelligent alien missile. They attempt to separate the intelligence from the weapon to save the intelligence and neutralize the weapon. But, it links with the Doctor's program terrorizing the crew and requests it be allowed to complete its mission of mass destruction.

Voyager encounters another Federation starship, the USS Equinox, commanded by Captain Rudy Ransom, which the Caretaker also abducted and stranded in the Delta Quadrant. As Janeway tries to figure out Captain Ransom, hostile aliens attack both ships. However, the Doctor exposes a terrible secret the Equinox crew harbors, and Ransom steals Voyager's technology and takes Seven of Nine and the Doctor as hostages.