Star Trek: The Next Generation – Sub Rosa [7.14]

After the death of her grandmother, Beverly is visited by Ronin, a handsome and seductive disembodied man, who was once her grandmother’s lover.  Overwhelmed by the intimacy of his presence, Beverly resigns Starfleet to live with him forever. 

Star Trek: The Next Generation – Descent [6.26]

During a battle with the Borg, Data unexpectedly finds himself experiencing a flash of anger.  Confused and concerned by his newly discovered capacity for emotions, Data finds himself lured by a Borg prisoner to set him free and escape with him to join his mysterious leader. 

Star Trek: The Next Generation – Aquiel [6.13]

Geordi becomes familiar with a young officer who disappeared from a remote communications station through her logs.  When she turns up alive, he has already formed an attachment to her. 

Star Trek: The Next Generation – Time’s Arrow, Part II [6.1]

Picard and the crew settle in 19th century earth, where they track the presence of the time traveling aliens.  Data re-connects with his shipmates, and the crew wind up in the cave where Data has his head blown off. 

Star Trek: The Next Generation – The Outcast [5.17]

Commander Riker works closely with Soren, a member of an androgynous race in which identification with one gender or another is forbidden.

Star Trek: The Next Generation – Violations [5.12]

Visiting telepaths who make a habit of helping people recover lost memories are traveling on board the Enterprise.  One of them, Jev, begins to telepathically attack members of the crew, making them relive dark memories repeatedly until they fall into a coma. 

Star Trek: The Next Generation – Silicon Avatar [5.4]

The Crystalline Entity (from Datalore) reappears and destroys a colony world that the Enterprise is assisting.  An expert on the Entity, Dr. Kila Marr, joins the crew to pursue the creature. 

Star Trek: The Next Generation – The Drumhead [4.21]

A visiting Kilngon is discovered to be a spy working for the Romulans, just a mysterious accident effects the Enterprise engines.  Retired Admiral Nora Satie comes on board to assist Picard in tracking down potential saboteurs, and soon finds a suspect in a low ranking crewman.  However, the investigation turns into a witch hunt

Star Trek: The Next Generation – Night Terrors [4.17]

The Enterprise investigates a Federation ship that had gone missing, in which the entire crew had killed each other and themselves in a fit of paranoia.  The Enterprise becomes trapped in the same rift that had trapped the other ship, and the Enterprise crew begins to exhibit similar problems, which Dr. Crusher deduces is caused by an inexplicable failure of the crew to be able to dream. 

Star Trek: The Next Generation – The Wounded [4.12]

The Enterprise is forced to ally with former wartime enemies, the Cardassians, to stop a rogue Federation captain from attacking Cardassians ships and stations.  The Captain, Benjamin Maxwell, is a former commanding officer of Chief O’Brien, who must deal with his prejudices against the Cardassians.