Star Trek IV: The Voyage Home
When a huge alien probe enters the galaxy and begins to vaporize Earth's oceans, Kirk and his crew must travel back in time in order to bring back whales and save the planet.
Cast
William Shatner
Leonard Nimoy
DeForest Kelley
James Doohan
George Takei
Walter Koenig
Nichelle Nichols
Mark Lenard
Jane Wyatt
Majel Barrett