Quantum Leap – Justice [4.4]

Sam leaps into Clyde (no last name given) just as he is being inducted into the Ku Klux Klan. Sam is revolted and soon discovers that Clyde himself is conflicted about it, feeling pressured to join because of his family. Sam soon discovers that he is there to prevent the forthcoming lynching of a young black activist named Nathaniel Simpson. His efforts to prevent violence ultimately fail, and in the end Sam is only able to save Nathaniel by insisting he be hung next to him–something the Klansmen, particulalry his father-in-law, are unwilling to do.

Star Trek: The Next Generation – Brothers [4.3]

Data suddenly comes under control of a homing signal that brings him to the secret hideaway of his creator, Dr. Noonien Soong, which endangers an emergency medical mission that the Enterprise was undertaking.  The signal also brings Lore

Star Trek: The Next Generation – Shades of Gray [2.22]

When Riker is infected by a mysterious infection, the only way to stop it from killing him is to stimulate his memories.  That’s it.

Star Trek: The Next Generation – Manhunt [2.19]

The Enterprise transports delegates to an important conference, including Lwaxana Troi.  Unfortunately, Ambassador Troi is undergoing a Betazed “menopause” that greatly increases her sex drive, making her determined to find a new mate.  She pursues Picard, who retreats by hiding on the holodeck in a Dixon Hill program.

Star Trek: The Next Generation – Q Who [2.16]

Q turns up asking to be allowed to join the Enterprise crew, to serve as guide for the unknown dangers that lie ahead.  When Picard refuses, Q determines to prove that the Enterprise is not ready for what is out there, and facilitates an encounter with the Borg

Star Trek: The Next Generation – The Dauphin [2.10]

Wesley falls for Saleeya, an attractive teenaged alien dignitary who is being transported by the Enterprise to where she assume leadership of her people – a role she sees as limiting and controlling.   Saleeya chafes under the strict guardianship of Anya, her lifelong companion, and makes efforts to spend time with Wesley. 

Star Trek: The Next Generation – A Matter of Honor [2.8]

Riker participates in an officer exchange program, becoming first officer on board a Klingon ship.  As he learns Klingon ways and protocols, he grows in understanding them as a people.  Things nearly escalate out of control

Star Trek: The Next Generation – Elementary, My Dear Data [2.3]

Whilst attempting to enjoy a holographic Sherlock Holmes program during some downtime, Geordi inadvertently orders the computer to create an adversary capable of defeating Data.  This turns out to be a holographic Professor Moriarity

Star Trek: The Next Generation – The Child [2.1]

As the Enterprise is tasked with the perilous task of delivering a series of highly virulent germs to a needy planet, Counselor Troi is impregnated by a disembodied energy creature.

Star Trek: The Next Generation – Heart of Glory [1.19]

The Enterprise picks up three Klingon fugitives whose presence creates a particular dilemma for Lt. Worf.  These Klingons are unhappy with the way that peace with the Federation has impacted their people, and long for battles and glory.  When Klingon authorities come to arrest them, they escape, and Worf must face down their leader with the Enterprise at stake.