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.

Directed by: Leonard Nimoy
Written by: Nicholas Meyer & Harve Bennett & Peter Krikes & Steve Meerson
Release date: 1986-11-26
Runtime: 118 minutes
Critics score:
Tagline: Star date: 1986. How on Earth can they save the future?
Related titles:
Cast:
Leonard Nimoy Leonard Nimoy
Spock 
DeForest Kelley DeForest Kelley
McCoy 
James Doohan James Doohan
Scotty 
George Takei George Takei
Sulu 
Walter Koenig Walter Koenig
Chekov 
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Also known as:
  • Misión: Salvar La Tierra
  • Jornada nas Estrelas – A Volta para Casa
  • Star Trek IV Cesta domů
  • Стар Трек IV: Пътуване към дома
  • Star Trek IV: Powrót na Ziemię
  • Star Trek IV: Regresso à Terra
  • スター・トレック4 故郷への長い道
  • Star Trek 4. - A hazatérés
  • Стар Трек 4
  • Zurück in die Gegenwart
  • Powrót na Ziemię
  • Star Trek 4