Star Trek IV: The Voyage Home (Paramount Pictures, 1986) is the fourth feature film based on the Star Trek science fiction television series. It is often referred to as ST4:TVH, STTVH,TVH, or by longtime fans of the series, "the one with the whales". It completes the loose story trilogy started in Star Trek II: The Wrath of Khan and continued in Star Trek III: The Search for Spock.

Leonard Nimoy directed, as well as starred in The Voyage Home, which earned four Academy Award-nominations, for Best Cinematography, Best Effects, Best Music and Best Sound. The original music score was composed by Leonard Rosenman.

To save Earth from a destructive space probe, Kirk and his fugitive 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. Written by Kenneth Chisholm

The most acclaimed Star Trek adventure of all time. It's the 23rd Century, and a mysterious alien power is threatening Earth by evaporating the oceans and destroying the atmosphere. In their frantic attempt to save mankind, Kirk and his crew must time travel back to 1986 San Francisco where they find a world of punk, pizza, and exact-change buses that are as alien to them as anything they've ever encountered in the far reaches of the galaxy. William Shatner and Leonard Nimoy return as Kirk and Spock, along with the entire Star Trek crew. Written by Robert Lynch

A space probe appears over 23rd century earth, emanating strange sounds towards the planet, and apparently waiting for something. As time goes on, the probe starts to cause major storms on earth and threaten its destruction. James T. Kirk and crew are called upon once again to save mankind. They discover the strange sound is actually the call of the humpback whale - which has been hunted to extinction. They have only one choice - to attempt to time travel back into the 20th century, locate a whale, and bring it back to 23rd century earth to reply to the probe. Written by Colin Tinto

Admiral Kirk and his crew vow to return to Earth after rescuing Captain Spock to face criminal charges after his unauthorized mission and theft of the U.S.S. Enterprise. After rescuing two humpback whales, Kirk is found guilty of disobeying a Starfleet superior officer and is demoted to Captain and given command of the U.S.S. Enterprise-A. Written by Gustaf Molin