Star Trek
The Search for Spock (1984)
Admiral Kirk and his bridge crew risk their careers stealing the decommissioned Enterprise to return to the restricted Genesis Planet to recover Spock's body
A human soldier is sent from 2029 to 1984 to stop an almost indestructible cyborg killing machine, sent from the same year, which has been programmed to execute a young woman whose unborn son is the key to humanity's future salvation.
The monstrous spirit of a slain child murderer seeks revenge by invading the dreams of teenagers whose parents were responsible for his untimely death.