Star Trek II: The Wrath of Khan” helmer Nicholas Meyer returns to the director’s chair for what would end up being the final “Star Trek” film to feature the entire original crew of the Enterprise. Released to coincide with the 25th anniversary of the “Star Trek” television series, “The Undiscovered Country” opens with the destruction of the moon Praxis, which contained the key energy production facility of the Klingons; no longer able to maintain their tyrannical grip on the galaxy, the longtime enemies of the Federation propose a peace settlement. Hopes for the longtime conflict between the two forces coming to an end are soon dashed when the Klingon chancellor (David Warner) is murdered while being escorted to Earth to commence with the negotiations, a crime for which Kirk (William Shatner) and McCoy (DeForest Kelley) are accused and subsequently imprisoned by Klingon General Chang (Christopher Plummer), causing the remaining crew of the Enterprise-A to investigate a dark conspiracy to sabotage the peace talks … led by Spock’s own protege, Valeris (Kim Cattrall). “Star Trek VI” is perhaps the most “literary” installment of the series, with the title itself a reference to “Hamlet” (and which was the original working title for “The Wrath of Khan”) and Chang quoting no less than two other Shakespeare plays throughout the course of the film; meanwhile, the prison planet, Rura Penthe, is named after the slave labor camp in “20,000 Leagues Under the Sea.” Michael Dorn, beating his “Star Trek: The Next Generation” co-stars to their big-screen debut by one movie, appears as Colonel Worf, who is meant to be the grandfather of Lieutenant Worf, Dorn’s character from “TNG.”