It's the 23rd century, and a mysterious space probe is evaporating Earth's oceans and destroying the atmosphere. The probe emits a message delivered in the song of long-extinct humpback whales. Unless the probe's call is answered, Earth faces certain destruction. Admiral Kirk (William Shatner), Spock (Leonard Nimoy), and the rest of the Enterprise crew time travel to 20th-century Earth in their captured Klingon Bird-of-Prey starship to find humpback whales and bring them back to the future, in the hope that the whales will persuade the probe to stop its attacks. Landing in 1986 San Francisco, our heroes find a world more alien than anything they've encountered in their travels through the galaxy. Nimoy's 1986 Star Trek adventure (known as "the one with the whales") earned four Oscar nods and remains a favorite among Trekkies and non-Trekkies alike.