The Nexus from Star Trek Generations played an important role in Star Trek history, but was never seen after the movie's climactic scenes. The mysterious energy ribbon was the McGuffin of the first Star Trek: The Next Generation movie, sought after by the obsessive and villainous scientist Dr. Tolian Soran (Malcolm McDowell). Soran's quest endangered the lives of two generations of USS Enterprise crew members when the Nexus seemingly killed Captain James T. Kirk (William Shatner) and caused the destruction of the USS Enterprise-D. The energy ribbon was revealed to be a gateway to an extra-dimensional realm where all one's dreams could come true.
It's an enticing prospect, but the power of the Nexus' gateway was so fierce and destructive that anyone seeking to enter it could just as easily be killed. Having briefly experienced the pleasures of the Nexus, Soran dedicated his life to figuring out how to return there. Soran's plan put 230 million lives at risk and required two legendary Star Trek captains to team up to stop him. It also sadly led to the death of Captain James T. Kirk, who gave his life on Veridian III. Here's everything known about the Nexus in both a real-world and in-universe context.
