Star Trek: The Next Generation – All Good Things [7.25]

Picard finds himself mysteriously moving back and forth between three different eras of his life:  the day when he first came aboard the Enterprise as Captain, far future when he is long-retired, and the “present day.”  In all three time frames he becomes aware of a mysterious anomaly in space that threatens to destroy the universe.  He is also told by Q that he must solve this mystery in order to prove that humanity is worthy to exist. 

Star Trek: The Next Generation – Dark Page [7.7]

During a diplomatic mission on the Enterprise, Lwaxana Troi behaves erratically and eventually collapses when her own telepathy turns in on herself.  With the help of another telepathic species, Deanna is able to visit her mother’s nightmares, and eventually discover that she is repressing a terrible trauma from her years ago

Star Trek: The Next Generation – Cost of Living [5.20]

A newly engaged Lwaxana  Troi comes on board the Enterprise to prepare for her wedding to man she’s never met, something she’s agreed to as she’s feeling old.  Meanwhile, Alexander and Worf run into a lot of tension in their relationship.  Lwaxana bonds with Alexander, to Worf’s concern.  Meanwhile, a strange swarm of space-born organisms innocently threatens the ship. 

Star Trek: The Next Generation – Half a Life [4.22]

Lwaxana Troi is shocked when she discovers that Timicin, a scientist from who is attempting to develop a means to extend the life of his world’s dying sun, is due to follow his world’s custom and voluntarily giving up his life when he turns 60. 

Star Trek: The Next Generation – Ménage à Troi [3.24]

After spurning his advances, Lwaxana Troi is kidnapped by Ferengi DaiMon Tog, along with Riker and Deanna.  Tog is both smitten with her as well as interested in making use of her telepathic abilities to gain profit. 

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 – Haven [1.10]

Deanna Troi is startled when the time comes to fulfill a childhood betrothal to the human doctor Wyatt Miller.  Much friction takes place between Wyatt’s family and the brash Lwaxana Troi, Deanna’s mother.