Star Trek IV: The Voyage Home
Still on the planet Vulcan (where audiences last saw them at the end of The Search for Spock), Kirk, McCoy, Scotty, Sulu, Chekov and Uhura prepare to head home to receive their comeuppance for stealing the Enterprise and taking it to the forbidden Genesis planet. Spock, who has been recuperating from the fal-tor-pan procedure that restored his katra to his physical body, decides to accompany them so that he can testify at their court martial proceedings. But as their ship nears Earth, they receive an emergency transmission, warning all incoming vessels to steer clear of Earth. The reason: a mysterious alien probe has rendered all nearby ships and planetary defensive systems powerless, and is now wreaking havoc on the biosphere.
One of the founders of Vulcan philosophy. Her principle beginning, "Logic is the cement of our civilization..." was part of Spock's retraining in 2286. A Vulcan ship, the first to make contact wit...