Plot: Branded as fugitives by the Federation, the crew of the USS Enterprise dutifully returns to Earth to face charges for crimes committed in the course of rescuing Spock. But en route, it is learned that Earth is being ravaged by a space probe demanding a response from a lifeform that no longer exists. Commandeering a captured Klingon Bird of Prey, Kirk and his crew go back in time to 20th century Earth to recover two humpback whales, who are the only Earth beings who can respond to it.
Directed By: Leonard Nimoy
Written By: Steve Meerson, Peter Krikes, Harve Bennett, Nicholas Meyer, Leonard Nimoy and Gene Roddenberry (Star Trek)
Production: Paramount Pictures
In Theaters: November 26, 1986
Box Office: $109,713,132 (USA)
Budget: $25,000,000 (estimated)
Runtime: 1 hr. 59 mins.