Admiral James T. Kirk is charged by the Klingon Empire for the comandeering of a Klingon starship. The Federation honors the Klingon demands for extradition, and Kirk and the crew of the Starship Enterprise are drawn back to Earth. But their trip is interrupted by the appearance of a mysterious, all-powerful alien space probe. Suddenly, Kirk, Spock, McCoy and the rest of the crew must journey back through time to twentieth-century Earth to solve the...

The U.S.S. Enterprise is summoned to transport a dangerous criminal from Starbase prison to a rehabilitation center. The brilliant physicist Dr. Georges Mordreaux has been accused of promising to send people back in time, but then killing them instead. But there's more at stake than just a few lives. Mordreaux's experiments have somehow thrown the entire universe into a deadly time warp. All of existence is closing in on itself, and only Spock can...

Time in the galaxy has stopped running in its normal course. That can mean only one thing -- the Guardian of Forever is malfunctioning. To save the universe, Starfleet Command reunites three of its most legendary figures -- Admiral James T. Kirk, Spock of Vulcan, and Dr. Leonard McCoy -- and sends them on a desperate mission to contact the Guardian, a journey that ultimately takes them 5,000 years into the past. They must find Spock's son Zar once...

With the help of the Vulcan leader T'Pau, Spock gets permission to use the Guardian of Forever, a portal through time constructed by a long-vanished race, to venture into the past. On another trip into history, on the planet Sarpeidon, Spock had loved a woman who could not return with him to the future, and now Spock wishes to see the son she bore him, 5,000 years earlier. But a Romulan attack on the Guardian's planet could interfere, unless the EnterpriseTM...

On the planet Nimbus III, a harsh world deep in the neutral zone, the three major powers -- Federation, Klingon, and Romulan -- attempt a revolutionary cooperative program, jointly developing the planet as an experiment in peace. But that makes Nimbus III an irresistible target for terrorists, who seize control of the planet, and the EnterpriseTM is sent on a daring mission of rescue. And soon Kirk and his crew find themselves on a much more dangerous...

A freak shuttlecraft accident -- and suddenly Captain Kirk and most of his senior officers find themselves adrift in space, with no hope of rescue, no hope of repairing their craft, or restoring communications -- with nothing, in short, but time on their hands. Time enough for each to tell the story of the Kobayashi Maru -- the Starfleet Academy test given to command cadets. Nominally a tactical exercise, the Kobayashi Maru is in fact a test of character...

En route to Alpha Malurian Six to settle a dispute between two religions, the U.S.S. EnterpriseTM first stops to do a routine check on the progress of a terraforming colony on Beta Canzandia Three, a colony whose inhabitants include Carol and David Marcus. Spock is left behind at the terraforming colony to continue his scientific studies and the rest of the crew heads to Alpha Malurian Six to find the dispute has turned to war. As Kirk, McCoy, and...

As a young doctor with a beautiful family and a promising medical career, Dr. Leonard McCoy thought he had it all. But when the woman he loved betrayed him, McCoy fled to Starfleet, hoping to lose his pain in the depths of space. Now, more than forty years later, the EnterpriseTM and her crew are ordered to transport a group of mediators to the planet Ssan, a world where assassination is a time-honored tradition, and McCoy is surprised to learn that...

Captain Kirk and the crew of the EnterpriseTM pursue a most critical mission: rescuing the brilliant scientist Zefram Cochrane from captors who want to use his skills to develop a way to conquer the galaxy. Ninety-nine years in the future, Captain Picard commands his own Enterprise crew on a similar mission, the rescue of an important and mysterious person whose safety is vital to the Federation's survival. As their missions develop, the two Enterprise's...

Starfleet diplomat Captain Hikaru Sulu is transported by powerful, frightening dreams to the desolate desert world of Sigma Cameron Four. It was there, as Commander of the U.S.S. Excelsior 20 years earlier, that he discovered traces of the ancient Shalakai -- a ruthless culture who, legend held, had once uncovered the secret to eternal life. Driven to find that secret, Sulu's brilliant science officer, Commander Flynn Konner, launched a fateful mission...