As Riker tries to save the Enterprise and the Earth from a powerful alien race, Captain Picard's life hangs in the balance. The crew faces their own demons and must overcome their own obstacles to continue their mission. This leads Data to return to his creator to better understand emotions. Worf must accept his Klingon heritage and face his former family. A power struggle threatens the Federation as the Romulans try to make peace with their universe and the Klingons deal with a potential successor to their empire. Political relations are strained within the Enterprise as a rogue ship attacks
All episodes — Season 4
S4 E1The Best of Both Worlds (2)
Sep 24, 19908.646 min
Stardate: 44001.4. Riker must pull out all the stops in order to save Earth from a Borg invasion being lead by none other than Locutus - otherwise known as Captain Jean-Luc Picard.
S4 E2Family
Oct 1, 19907.446 min
Stardate 44012.3. Picard meets with his older brother in France, and contemplates resigning his Starfleet commission after his ordeal with the Borg. Worf's adoptive parents spend time with their son on the Enterprise, and succeed in embarra
S4 E3Brothers
Oct 8, 1990746 min
Stardate: 44085.7 While escorting a seriously ill boy to the closest Federation Starbase for treatment, Data mysteriously takes control of the Enterprise and takes it to a distant planet. He learns that his creator has summoned him for an
S4 E4Suddenly Human
Oct 15, 19906.546 min
Stardate: 44143.7. A custody battle between Picard and a child's adoptive father arises when a boy showing evidence of abuse is discovered.
S4 E5Remember Me
Oct 22, 19907.746 min
Stardate: 44161.2. Dr. Crusher begins to question her sanity when members of the crew start disappearing one by one, and all evidence of their existence is erased.
S4 E6Legacy
Oct 29, 19906.346 min
Stardate: 44215.2. The Enterprise is caught in the middle of a civil war when they encounter Tasha Yar's long-lost younger sister, Ishara.
S4 E7Reunion
Nov 5, 19907.746 min
Stardate: 44246.3. Picard is asked to choose between two candidates to succeed the current Chancellor of the Klingon High Council as the new ruler of the Empire. Worf is disturbed by unexpected news when he is paid a visit by his former lov
S4 E8Future Imperfect
Nov 12, 19907.546 min
Stardate: 44286.5. Riker awakens one morning to discover he is suddenly 16 years in the future as the captain of the Enterprise, and negotiating a peace treaty with the Romulans with no recollection of how he arrived at that point in time,
S4 E9Final Mission
Nov 19, 19906.446 min
Stardate: 44307.3. Wesley must keep Captain Picard alive on the eve of his entrance exam to Starfleet Academy when their shuttle crashes on a barren moon.
S4 E10The Loss
Dec 31, 19905.746 min
Stardate: 44356.9. Troi loses her empathic abilities when the Enterprise is caught in the gravitational pull of a black hole.
S4 E11Data's Day
Jan 7, 19917.446 min
Stardate: 44356.9. A Vulcan Ambassador being escorted by the Enterprise starts exhibiting suspicious behavior. Miles O'Brien marries his fiancée, Keiko Ishikawa in Ten-Forward.
S4 E12The Wounded
Jan 28, 19917.946 min
Stardate: 44429.6. When the Cardassians start re-arming themselves, a Federation Captain takes it upon himself to remove a potential threat before it escalated. Now, Picard must fight for the Cardassians and stop the renegade from slaughter
S4 E13Devil's Due
Feb 4, 19916.946 min
Stardate: 44474.5. The crew of the Enterprise must defend the planet Ventax from a mythological Devil who re-appears when a 1000 year long era of peace comes to an end.
S4 E14Clues
Feb 11, 19917.846 min
Stardate: 44502.7. Picard orders a secret investigation when the crew suspects Data of lying about the discovery of a wormhole.
S4 E15First Contact
Feb 18, 19917.846 min
Riker is abducted by a xenophobic race of aliens during a first contact mission. They believe the Enterprise is a scout for an invasion.
S4 E16Galaxy's Child
Mar 11, 19916.646 min
Stardate: 44614.6. Geordi must work with the real Leah Brahms when she arrives on the Enterprise when a space-borne alien life form thinks the ship is its mother. Tensions rise when she learns that Geordi created a holographic version of he
S4 E17Night Terrors
Mar 18, 1991746 min
Stardate: 44631.2. Troi faces a recurring nightmare when the Enterprise is caught in a rift in space. Soon, the crew begins to slip into insanity through dream deprivation.
S4 E18Identity Crisis
Mar 25, 19916.446 min
Stardate: 44664.5. Geordi and a former crew mate begin evolving into bizarre creatures when they return to a planet both of them were on during an Away Mission five years earlier.
S4 E19The Nth Degree
Apr 1, 19917.546 min
Stardate: 44704.2. An alien probe transforms Barclay from a shy, awkward character into an arrogant super-genius who is able to interface with the Enterprise's computer through the holodeck.
S4 E20Qpid
Apr 22, 19916.846 min
Stardate:44741.9. Q places Vash and the senior Enterprise crew in a recreation of Robin Hood and his merry men.
S4 E21The Drumhead
Apr 29, 1991846 min
Stardate: 44769.2. Picard is accused of treason when an explosion aboard the Enterprise is investigated by a ruthless and paranoid Starfleet Admiral.
S4 E22Half a Life
May 6, 19916.846 min
Stardate: 44805.3. Lwaxana Troi falls in love with a man who must return home to commit suicide, as is customary for their race when they reach a certain age.
S4 E23The Host
May 13, 19916.246 min
Startdate: 44821.3. Dr. Crusher falls in love with a Trill Ambassador, until she discovers the Trill's symbiotic relationship.
S4 E24The Mind's Eye
May 27, 19917.246 min
Stardate: 44885.5. While en route to Risa for shore leave, Geordi is abducted by the Romulans and brainwashed into becoming an assassin.
S4 E25In Theory
Jun 3, 19916.946 min
Stardate: 44932.3. Data experiences the complexities of love when a fellow crewmate becomes attracted to him.
S4 E26Redemption (1)
Jun 17, 19917.746 min
Stardate: 44995.3. Worf must choose between his people and the Federation when a civil war threatens to destroy the Klingon Empire.