Star trek II: the wrath of Khan: In the 23rd Century, the Federation Starship U.S.S. Enterprise is on routine training maneuvers. Admiral James T. Kirk seems resigned to the fact that this may well be the last space mission of his career. But Khan is back and is being aided by his exiled band of genetic supermen. A brilliant renegade of 20th century Earth, Khan has raided Space Station Regula One and stolen a top secret device called Project Genesis, has wrested control of another Federation starship, and now schemes to set a most deadly trap for his old enemy Kirk.

Star trek III: the search for Spock: The Enterprise is to be decommissioned and Dr. McCoy begins acting bizarrely. A visit from Spock's father, Sarek, reveals that McCoy is carrying Spock's Kattra. When permission to rescue Spock is denied, Kirk and the crew steal the Enterprise. The Klingons, led by the psychopathic Commander Kruge, are planning to steal the secrets of Genesis. The Enterprise is crippled fighting the Klingon ship and Kirk's son is murdered. Kirk eliminates the remaining Klingons by tricking them onto the Enterprise and then blowing it up. Kirk heads for Vulcan for a ceremony to re-fuse Spock's body and Kattra.

Star trek IV: the voyage home: A space probe appears over 23rd century Earth, emanating strange sounds towards the planet, 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. Kirk and his crew 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.