Evolution (Star Trek: The Next Generation) neutronium as a result of a stellar explosion that occurs every 196 years and is due to occur in the next few hours. Stubbs plans to launch a probe, dubbed the Egg, to gather the data, a result of a lifetime's development. Meanwhile, Chief Medical Officer Dr. Crusher (Gates McFadden) has returned to her duties on the "Enterprise" after a stint at Starfleet Medical. As the expected time of the stellar explosion nears, the ship malfunctions in odd ways, and the issue is traced to the computer core. Acting Ensign Wesley Crusher (Wil Wheaton), who had been working on a
Unification (Star Trek: The Next Generation) previously requested $1 million to cameo in the series, but he took minimum SAG pay to reprise the role of Spock to publicize "Star Trek VI: The Undiscovered Country", on which he was executive producer. This episode is one of four times that an original series character reprised his role in "The Next Generation"; the other three being "Encounter at Farpoint" (DeForest Kelley), "" (Mark Lenard), and "" (James Doohan). The episode was dedicated to the late Gene Roddenberry, who had died shortly prior to its broadcast. Unification (Star Trek: The Next Generation) "Unification" is a two-part episode of the