Leonard Nimoy

Spock Explains Time Travel Calculations to McCoy

Alien Probe Drains Earth's Oceans

Kirk and Gillian Discuss Whales and Time Travel

Alien Probe Continues to Drain Earth's Oceans

Chekov Escapes and is Pursued

Whaling Ship Prepares to Hunt Humpbacks

Bird of Prey Departs Vulcan

Uhura Modifies Probe Signal for Underwater Playback

Crew Prepares Bird of Prey for Departure

Kirk and Gillian Drive to the Park

Whales' Song Confirmed, Return to Future Initiated

USS Enterprise CVN-65 Security Patrol

Enterprise Escapes Space Dock and Disables Excelsior

Captain Styles Receives Yellow Alert on Excelsior

Klingon Bird-of-Prey Scans Space and Attacks