Season 4

Stardate: 51003.7. The Voyager crew, allied with the Borg, prepare to battle the sinister alien Species 8472. But can an alliance between opinionated individuals and a collective race of consumers survive such fundamental differences?

Stardate: 51008. Janeway begins the process of integrating Seven of Nine into the Voyager crew. Meanwhile, Kes begins to experience extreme advances in her mental powers.

Stardate: Unknown. When Voyager is forced to eject its warp core, Torres and Paris take a shuttle to retrieve it. But when the shuttle is damaged, the two officers are forced to abandon it—and find themselves alone in space with a rapidly depleting oxygen supply.

Stardate: 51082.4. Chakotay is stranded on a planet where two races are trying to wipe each other out in a massive, planet-wide war.

Stardate: 51186.2. Torres and the Doctor assist a holographic ship's servant whose crew has been killed. Meanwhile, when Kim and Seven of Nine are assigned to work on a project together, the ensign attempts to get to know the person inside the mysterious former-Borg.

Stardate: Unknown. Seven of Nine steals a shuttlecraft and flees Voyager in an attempt to answer a mysterious homing beacon and return to the Borg Collective.

Stardate: 51244.3. When members of the crew begin suffering from bizarre mutations, Seven of Nine may be the only one who can uncover the reasons why.

Stardate: 51268.4. The Voyager crew finds its determination and morale challenged when trying to survive a brutal, long-lasting conflict with a race called the Krenim.

Stardate: 51425.4. While Chakotay and Paris remain on board Annorax's time ship, Janeway attempts to repair Voyager enough to pursue her crew members' abductors.

Stardate: 51367.2. After making contact with a race of telepaths, the Voyager crew must help defuse a volatile situation when a local citizen acts on a random, violent thought inadvertently tranferred from Torres.

Stardate: 51386.4. Janeway and the hologram of Leonardo da Vinci must work together to retrieve Voyager's main computer processor, which has been stolen by alien thieves.

Stardate: 51449.2. Neelix is killed during an away mission, but Seven of Nine is able to revive him using Borg technology, leading him into a crisis of faith regarding the afterlife.

Stardate: 51471.3. The crew is 'attacked' by a species of alien that live in the human dream state. It is up to Chakotay, with extensive knowledge about the dream state, to save the ship and its crew.

Stardate: Unknown. When Seven discovers an alien communications array, the crew devises a way of sending the Doctor's program across it into the Alpha Quadrant, where he finds himself aboard a Starfleet vessel that has been commandeered by the Romulans.

Stardate: 51501.4. As letters from the Alpha Quadrant come trickling through the communications array, the Voyager crew learns of an assortment of joyous, disturbing, and inevitable news.

Stardate: 51652.3. The crew rescues a critically injured but aggressive Hirogen hunter, who threatens to have his allies destroy Voyager if Janeway comes between him the hunt for his latest prey: a single creature from Species 8472.

Stardate: 51658.2. While re-fitting Voyager's systems with newly traded weapons, Seven of Nine claims to have been assaulted by Kovin, the weapons dealer. The Doctor soon makes a surprising discovery about the situation.

Stardate: Unknown. After having taken over Voyager, the Hirogen supply the crew members with artificial identities and subject them to violent holodeck simulations.

Stardate: 51715.2. The crew must stop an artificial holodeck rendition of a World War II battle from spilling onto the decks of the ship while simultaneously dealing with a Hirogen takeover.

Stardate: 51762.4. An alien test pilot who has the capability of switching bodies manages to take Tom's place aboard Voyager in order to escape the law.

Stardate: 51781.2. When the Voyager computer detects a mysterious, powerful, and extremely dangerous substance, Janeway must risk all to attempt destroying it.

Stardate: Unknown. An alien woman who requests asylum on board Voyager claims that she was onboard the ship a month ago, and she fell in love with Chakotay.

Stardate: Unknown. 700 years into the future the Doctor must defend the crew of Voyager and set history straight when an alien race claims that the Warship Voyager was responsible for war crimes commited against their race.

Stardate: Unknown. Kim and Paris beam down to a hellish, barren planet to search for deuterium, a crucial energy source required to keep the ship running.

Stardate: 51929.3. The crew goes into stasis during a month-long journey through a nebula, leaving Seven and the Doctor in sole charge of running the ship.

Stardate: 51978.2. When an alien helps the Voyager crew decode the mysterious encrypted message from Starfleet, the crew learns the whereabouts of a secret experimental starship that may be able to get them back to the Alpha Quadrant within a mere matter of months.