In "Brothers" and "The Ultimate Computer," the show explored Data’s origins and his burgeoning humanity, introducing his creator, Noonian Soong, and his "evil" brother, Lore.
This was the season that truly "built" the Trek universe we know today. It introduced the in "The Wounded," setting the stage for Deep Space Nine . It also experimented with unique storytelling perspectives, such as "First Contact," which told the story of an alien planet's "first contact" mission from the perspective of the aliens being visited, rather than the Enterprise crew. Conclusion Star Trek: The Next Generation - Season 4
We saw the return of Tasha Yar (via a timeline-displaced daughter) in "The Mind's Eye" and "Redemption," and deeper dives into O’Brien’s life in "The Wounded." The Moral High Ground In "Brothers" and "The Ultimate Computer," the show