Journey's End: Picard is forced to relocate Native Americans from a planet they have settled, while a colonist causes Wesley to reconsider his future. (S7, ep 20) [S]
Eye of the Beholder: While experiencing empathic visions after an officer's mysterious death, Troi becomes romantically involved with Worf. (S7, ep 18) [S]
Masks: While an alien archive transforms the Enterprise into its ancient society, Data is taken over by several different personalities from the extinct civilisation. (S7, ep 17) [S]
Thine Own Self: Having completely lost his memory, Data is stranded on a primitive planet where the inhabitants fear he is carrying a deadly plague. (S7, ep 16) [S]
Lower Decks: While enduring the Enterprise's promotion evaluation process, four junior officers find themselves involved in a top secret mission. (S7, ep 15) [S]
Imaginary Friend: A lonely little girl called Clara creates an imaginary friend, which one day appears to come to life, threatening the future of the Enterprise. (S5, Ep 22) [S]
The Perfect Mate: An empathic Metamorph which could be the peacemaker between two warring factions is in danger of being abducted by the Ferengi. (S5, Ep 21) [S]
Cost Of Living: The Enterprise manages to destroy an asteroid that was putting a planet at risk, but then is itself in danger from the asteroid's parasites. (S5, Ep 20) [S]
The First Duty: When Wesley Crusher's team suffers an accident at Starfleet Academy, Picard helps investigate its cause, and believes a cover-up is taking place. (S5, Ep 19) [S]
Cause And Effect: The future of the Enterprise looks bleak when the ship gets trapped in a time warp, causing the crew members to continually repeat their experiences. (S5, Ep 18) [S]
The Outcast: Riker finds himself falling for a Gennai when the two races collaborate on a mission to investigate the mysterious disappearance of a shuttle. (S5, Ep 17) [S]
Ethics: When he loses the ability to walk after an accident in a cargo bay, a traumatised Worf asks Riker to assist him in a Klingon suicide. (S5, Ep 16) [S]
Hero Worship: When a Starfleet ship crashes inside a thick, black cloud, Data attempts to coax the traumatised young sole survivor into revealing what happened. (S5, Ep 11) [S]
New Ground: When Worf's mother tells him that his son's Earth parents can no longer care for him, Worf tries to be a father to his child. (S5, Ep 10) [S]
A Matter Of Time: As the Enterprise crew struggles to save Panthera IV following an asteroid collision, a historian from the 26th century arrives on board. (S5, Ep 9) [S]
Unification - Part 2: Senator Pardel finds Picard on Romulus and brings him to Ambassador Spock, who reveals his attempts to unify the Vulcans and the Romulans. (S5, Ep 8) [S]
Unification - Part 1: When it is rumoured that Spock has defected to the Romulans, Picard and Data embark on a dangerous mission to investigate. (S5, Ep 7) [S]
The Game: The Enterprise gets a surprise visit from Starfleet Academy Cadet Wesley Crusher, who discovers something alien and sinister controlling the crew. (S5, Ep 6) [S]
Disaster: When a collision causes massive destruction throughout the Enterprise, Captain Picard and the crew work together to fix the ship before it's too late. (S5, Ep 5) [S]
Silicon Avatar: When a human colony is attacked, the crew attempts to locate the creature responsible - an entity which feeds on carbon-based lifeforms. (S5, Ep 4) [S]
Ensign Ro: Picard enlists the help of Ensign Ro Laren, as he searches for a dangerous Bajoran terrorist following an attack on one of the Federation outposts. (S5, Ep 3) [S]
Darmok: In an effort to communicate with the Tamarians, Captain Picard must learn how to speak as they do - in complex metaphors derived from mythology. (S5, Ep 2) [S]
Redemption - Part 2: Captain Picard and his crew are determined to prevent the Romulans from winning the Klingon Civil War, in which Worf is also entangled. (S5, Ep 1) [S]
In Theory: Data discovers some of the pitfalls of romance when he becomes involved with a crewmate as the ship passes through a dark matter nebula. (S4, Ep 25) [S]
The Mind's Eye: As he prepares for shore leave, Geordi is kidnapped and, through brainwashing, groomed for a new existence as an assassin. (S4, Ep 24) [S]
The Host: When Dr Crusher develops feelings for a Trill ambassador, they are complicated by what she learns about the Trills' existence. (S4, Ep 23) [S]
Half a Life: When Lwaxana Troi falls in love with a man, her joy is shortlived when tradition dictates that he has to return home and take his own life. (S4, Ep 22) [S]
Identity Crisis: Lieutenant Geordi La Forge and another crew member are infected by an alien parasite, which is slowly transforming them into another species. (S4, Ep 18) [S]
Night Terrors: The USS Britain's crew killed each other after suffering paranoid delusions. Deanna must find the cause before the Enterprise suffers the same fate. (S4, Ep 17) [S]
Galaxy's Child: Geordi meets the real Dr Leah Brahms, having fallen for the holographic version. A baby lifeform believes the Enterprise is its mother. (S4, Ep 16) [S]
First Contact: While on an undercover mission, Riker is captured by a group of xenophobic aliens who believe he is a scout for an invasion. (S4, Ep 15) [S]
Clues: The crew pass through a wormhole, knocking them unconscious for 30 seconds. But have they really lost more time than they think? (S4, Ep 14) [S]
Devil's Due: The crew must defend the planet Ventax from a mythological devil who has reappeared, bringing to an end a millennium-long period of peace. (S4, Ep 13) [S]
The Wounded: Picard faces a race against time to gather the facts behind an angry Cardassian commander's claim that the Federation attacked one of their outposts. (S4, Ep 12) [S]
Future Imperfect: After falling unconscious, Riker wakes up 16 years in the future and finds he is now captain of the Enterprise. But is everything as it seems? (S4, Ep 8) [S]
Reunion: While Picard is tasked with resolving a dispute over who will be the new ruler of the Klingon Empire, Worf is reunited with a former lover. (S4, Ep 7) [S]
Legacy: The crew of the Enterprise meet Tasha Yar's younger sister, Ishara, who is on a mission to end war on her conflict-riddled world. (S4, Ep 6) [S]
Allegiance: Captain Picard is secretly kidnapped and replaced by an evil imposter, leaving the crew bemused when he starts to exhibit strange behaviour. (S3, ep 18) [S]
Sins of the Father: When his long-lost brother appears on the Enterprise, Worf is thrust into a life-or-death battle for his family's honour. (S3, ep 17) [S]
Yesterday's Enterprise: The course of history is altered when a time rift brings a Starship Enterprise from the past into the present with a crew that includes Tasha Yar. (S3, ep 15) [S]
A Matter of Perspective: Riker is suspected of murdering a respected scientist who had accused the Enterprise officer of seducing his wife. (S3, ep 14) [S]