Star Trek III: The Search for Spock is a 1984 motion picture released by Paramount Pictures

Paramount Pictures

Paramount Pictures Corporation is an American film production and distribution company, located at 5555 Melrose Avenue in Hollywood. Founded in 1912 and currently owned by media conglomerate Viacom, it is America's oldest existing film studio; it is also the last major film studio still...

. The film is the third feature based on the Star Trek

Star Trek

Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

science fiction franchise and is the center of a three-film story arc

Story arc

A story arc is an extended or continuing storyline in episodic storytelling media such as television, comic books, comic strips, boardgames, video games, and in some cases, films. On a television program, for example, the story would unfold over many episodes. In television, the use of the story...

 that begins with Star Trek II: The Wrath of Khan

Star Trek II: The Wrath of Khan

Star Trek II: The Wrath of Khan is a 1982 American science fiction film released by Paramount Pictures. The film is the second feature based on the Star Trek science fiction franchise. The plot features James T...

and concludes with Star Trek IV: The Voyage Home

Star Trek IV: The Voyage Home

Star Trek IV: The Voyage Home is a 1986 American science fiction film released by Paramount Pictures. It is the fourth feature film based on the Star Trek science fiction television series and completes the story arc begun in Star Trek II: The Wrath of Khan and continued in Star Trek III: The...

. After the death of Spock

Spock

Spock is a fictional character in the Star Trek media franchise. First portrayed by Leonard Nimoy in the original Star Trek series, Spock also appears in the animated Star Trek series, two episodes of Star Trek: The Next Generation, seven of the Star Trek feature films, and numerous Star Trek...

 (Leonard Nimoy

Leonard Nimoy

Leonard Simon Nimoy is an American actor, film director, poet, musician and photographer. Nimoy's most famous role is that of Spock in the original Star Trek series , multiple films, television and video game sequels....

) the crew of the USS Enterprise

USS Enterprise (NCC-1701)

The USS Enterprise, NCC-1701, is a fictional starship in the Star Trek media franchise. The original Star Trek series depicts her crew's mission "to explore strange new worlds; to seek out new life and new civilizations; to boldly go where no man has gone before" under the command of Captain James...

 returns to Earth. When James T. Kirk

James T. Kirk

James Tiberius "Jim" Kirk is a character in the Star Trek media franchise. Kirk was first played by William Shatner as the principal lead character in the original Star Trek series. Shatner voiced Kirk in the animated Star Trek series and appeared in the first seven Star Trek movies...

 (William Shatner

William Shatner

William Alan Shatner is a Canadian actor, musician, recording artist, and author. He gained worldwide fame and became a cultural icon for his portrayal of James T...

) learns that Spock's spirit, or katra

Vulcan (Star Trek)

Vulcans, or sometimes Vulcanians, are an extraterrestrial humanoid species in the Star Trek universe who evolved on the planet Vulcan, and are noted for their attempt to live by reason and logic with no interference from emotion. They were the first extraterrestrial species in the Star Trek...

, is held in the mind of Dr. Leonard "Bones" McCoy

Leonard McCoy

Leonard "Bones" McCoy is a character in the Star Trek media franchise. First portrayed by DeForest Kelley in the original Star Trek series, McCoy also appears in the animated Star Trek series, seven Star Trek movies, the pilot episode of Star Trek: The Next Generation, and in numerous books,...

 (DeForest Kelley

DeForest Kelley

Jackson DeForest Kelley was an American actor known for his iconic roles in Westerns and as Dr. Leonard "Bones" McCoy of the USS Enterprise in the television and film series Star Trek.-Early life:...

), Kirk and company steal the Enterprise to return Spock's body to his home planet.