Star Trek III: The Search for Spock Trailer

Admiral Kirk s defeat of Khan and the creation of the Genesis planet are empty victories. Spock is dead and McCoy is inexplicably being driven insane. Then a surprise visit from Sarek, Spock s father, provides a startling revelation: McCoy is harboring Spock s living essence. With one friend alive and one not, but both in pain, Kirk attempts to help his friends by stealing the Enterprise and defying Starfleet s Genesis planet quarantine. But the Klingons have also learned of Genesis and race to meet