Editing Spock (section)

===''The Motion Picture'' and the film series===
At the beginning of ''[[Star Trek: The Motion Picture]]'' (1979), Spock is no longer serving in Starfleet, having resigned and returned home to pursue the Vulcan discipline of [[Kolinahr]]. Unable to complete the Kolinahr ritual after he senses the coming of [[V'ger]], he rejoins Starfleet to aid the ''Enterprise'' crew in their mission.<ref name="Encyc" /> Spock is later promoted to captain, and is commanding officer of the ''Enterprise'' at the beginning of ''[[Star Trek II: The Wrath of Khan]]'' (1982).<ref name="Encyc" /> At the film's end, he transfers his "[[Katra (Star Trek)|katra]]"&nbsp;– the sum of his memories and experience&nbsp;– to McCoy, and then sacrifices himself to save the ship and its crew from [[Khan Noonien Singh]] ([[Ricardo Montalbán]]).<ref name="Encyc" /> The sequel, ''[[Star Trek III: The Search for Spock]]'' (1984), focuses on his crewmates' quest to recover Spock's body, learning upon arrival that he has been resurrected by the Genesis matrix after landing on the planet at the end of the previous film. At the film's conclusion, Spock's revived body is reunited with his katra.<ref name="Encyc" /> Spock is next seen in ''[[Star Trek IV: The Voyage Home]]'' (1986), which depicts his recovery from the after-effects of his resurrection. After saving planet Earth with his comrades, Spock reconciles with his father who has reconsidered his opinion regarding Spock's life choices and his friends. In the film's final scene, he joins the crew of the newly commissioned [[USS Enterprise (NCC-1701-A)|USS ''Enterprise''-A]] under Kirk's command.<ref name="Encyc" /> In ''[[Star Trek V: The Final Frontier]]'' (1989), Spock and the ''Enterprise'' crew confront the renegade [[Sybok]], Spock's half-brother.<ref name="Encyc" /> ''[[Star Trek VI: The Undiscovered Country]]'' (1991) reunites the ''Enterprise'' crew on a mission to prevent war from erupting between the Federation and [[Klingon Empire]]. Spock serves as a special envoy to broker peace with the Klingons after a natural disaster devastates their homeworld.