While
Next Generation began its run with a two-part episode, and it trafficked in two-part season-ending "cliffhangers," this was the series' first "sweeps week" two-parter. It also represented the return of
Leonard Nimoy in the role of the supremely logical Mr. Spock. Now an ambassador of the Federation, Spock curiously embarks upon an unauthorized mission to the hostile planet Romulus. Disguising themselves as Romulans, Picard and Data investigate Spock's highly unorthodox behavior. Just when it seems that an explanation is at hand, the picture freezes, and the viewer is told to return next week.
Mark Lenard, who like
Leonard Nimoy was a veteran of the original
Star Trek, recreates his familiar role as Spock's father Sarek. First aired November 9, 1991, part one of "Unification" carried a pre-show dedication to
Gene Roddenberry, who had died eleven days earlier. The episode was written by Jeri Taylor from a story by
Rick Berman and Michael Piller. ~ Hal Erickson, All Movie Guide