Season 4
26 episodes · Sep 24, 1990
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 former enemies of the Federation, ultimately leading up to a civil war where one member of the Enterprise must decide where his loyalty lies.
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S4E1The Best of Both Worlds (2)
Sep 24, 199046mStardate: 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.
S4E2Family
Oct 1, 199046mStardate 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 embarrassing him in front of his crewmates.
S4E3Brothers
Oct 8, 199046mStardate: 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 important meeting that could change his life. However, Dr. Soong unknowingly summoned Data's twin brother Lore, into the bargain.
S4E4Suddenly Human
Oct 15, 199046mStardate: 44143.7. A custody battle between Picard and a child's adoptive father arises when a boy showing evidence of abuse is discovered.
S4E5Remember Me
Oct 22, 199046mStardate: 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.
S4E6Legacy
Oct 29, 199046mStardate: 44215.2. The Enterprise is caught in the middle of a civil war when they encounter Tasha Yar's long-lost younger sister, Ishara.
S4E7Reunion
Nov 5, 199046mStardate: 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 lover.
S4E8Future Imperfect
Nov 12, 199046mStardate: 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, or of any recent events.
S4E9Final Mission
Nov 19, 199046mStardate: 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.
S4E10The Loss
Dec 1, 199046mStardate: 44356.9. Troi loses her empathic abilities when the Enterprise is caught in the gravitational pull of a black hole.
S4E11Data's Day
Jan 7, 199146mStardate: 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.
S4E12The Wounded
Jan 28, 199146mStardate: 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 slaughtering innocents.
S4E13Devil's Due
Feb 4, 199146mStardate: 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.
S4E14Clues
Feb 11, 199146mStardate: 44502.7. Picard orders a secret investigation when the crew suspects Data of lying about the discovery of a wormhole.
S4E15First Contact
Feb 18, 199146mRiker is abducted by a xenophobic race of aliens during a first contact mission. They believe the Enterprise is a scout for an invasion.
S4E16Galaxy's Child
Mar 11, 199146mStardate: 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 her several months before in order to save the ship from danger.
S4E17Night Terrors
Mar 18, 199146mStardate: 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.
S4E18Identity Crisis
Mar 25, 199146mStardate: 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.
S4E19The Nth Degree
Apr 1, 199146mStardate: 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.
S4E20Qpid
Apr 22, 199146mStardate:44741.9. Q places Vash and the senior Enterprise crew in a recreation of Robin Hood and his merry men.
S4E21The Drumhead
Apr 29, 199146mStardate: 44769.2. Picard is accused of treason when an explosion aboard the Enterprise is investigated by a ruthless and paranoid Starfleet Admiral.
S4E22Half a Life
May 6, 199146mStardate: 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.
S4E23The Host
May 13, 199146mStartdate: 44821.3. Dr. Crusher falls in love with a Trill Ambassador, until she discovers the Trill's symbiotic relationship.
S4E24The Mind's Eye
May 27, 199146mStardate: 44885.5. While en route to Risa for shore leave, Geordi is abducted by the Romulans and brainwashed into becoming an assassin.
S4E25In Theory
Jun 3, 199146mStardate: 44932.3. Data experiences the complexities of love when a fellow crewmate becomes attracted to him.
S4E26Redemption (1)
Jun 17, 199146mStardate: 44995.3. Worf must choose between his people and the Federation when a civil war threatens to destroy the Klingon Empire.