Star Trek: The Next Generation - Season 4
1 - The Best of Both Worlds (2)
Air Date: September 24, 1990
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.
2 - Family
Air Date: October 1, 1990
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 embarrassing him in front of his crewmates.
3 - Brothers
Air Date: October 8, 1990
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 important meeting that could change his life. However, Dr. Soong unknowingly summoned Data's twin brother Lore, into the bargain.
4 - Suddenly Human
Air Date: October 15, 1990
Stardate: 44143.7. A custody battle between Picard and a child's adoptive father arises when a boy showing evidence of abuse is discovered.
5 - Remember Me
Air Date: October 22, 1990
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.
6 - Legacy
Air Date: October 29, 1990
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.
7 - Reunion
Air Date: November 5, 1990
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 lover.
8 - Future Imperfect
Air Date: November 12, 1990
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, or of any recent events.
9 - Final Mission
Air Date: November 19, 1990
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.
10 - The Loss
Air Date: December 1, 1990
Stardate: 44356.9. Troi loses her empathic abilities when the Enterprise is caught in the gravitational pull of a black hole.
11 - Data's Day
Air Date: January 7, 1991
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.
12 - The Wounded
Air Date: January 28, 1991
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 slaughtering innocents.
13 - Devil's Due
Air Date: February 4, 1991
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.
14 - Clues
Air Date: February 11, 1991
Stardate: 44502.7. Picard orders a secret investigation when the crew suspects Data of lying about the discovery of a wormhole.
15 - First Contact
Air Date: February 18, 1991
Riker is abducted by a xenophobic race of aliens during a first contact mission. They believe the Enterprise is a scout for an invasion.
16 - Galaxy's Child
Air Date: March 11, 1991
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 her several months before in order to save the ship from danger.
17 - Night Terrors
Air Date: March 18, 1991
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.
18 - Identity Crisis
Air Date: March 25, 1991
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.
19 - The Nth Degree
Air Date: April 1, 1991
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.
20 - Qpid
Air Date: April 22, 1991
Stardate:44741.9. Q places Vash and the senior Enterprise crew in a recreation of Robin Hood and his merry men.
21 - The Drumhead
Air Date: April 29, 1991
Stardate: 44769.2. Picard is accused of treason when an explosion aboard the Enterprise is investigated by a ruthless and paranoid Starfleet Admiral.
22 - Half a Life
Air Date: May 6, 1991
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.
23 - The Host
Air Date: May 13, 1991
Startdate: 44821.3. Dr. Crusher falls in love with a Trill Ambassador, until she discovers the Trill's symbiotic relationship.
24 - The Mind's Eye
Air Date: May 27, 1991
Stardate: 44885.5. While en route to Risa for shore leave, Geordi is abducted by the Romulans and brainwashed into becoming an assassin.
25 - In Theory
Air Date: June 3, 1991
Stardate: 44932.3. Data experiences the complexities of love when a fellow crewmate becomes attracted to him.
26 - Redemption (1)
Air Date: June 17, 1991
Stardate: 44995.3. Worf must choose between his people and the Federation when a civil war threatens to destroy the Klingon Empire.