Search Worlds Without End

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 Enterprise can keep the Guardian out of their hands.

Time in the galaxy has stopped running its normal course. That can only mean 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 again - and bring him back to their time to telepathically communicate the Guardian. But Zar is enmeshed in troubles of his own, and soon Kirk, Spock and McCoy find themselves in a desperate struggle to save both their world - and his.

Shortly after the events of The Undiscovered Country, Spock's mother, Amanda Grayson, is dying and Spock returns to the planet Vulcan where he and Sarek enjoy a rare moment of rapprochement. But just as his wife's illness grows worse, duty calls Sarek away - once again sowing the seeds of conflict between father and son. Yet soon Sarek and Spock must put aside their differences and work together to foil a far-reaching plot to destroy the Federation - a plot that Sarek has seen in the making for nearly his entire career.

The epic story will take the crew of the USS Enterprise to the heart of the Klingon Empire where Captain Kirk's last surviving relative has become a pawn in the battle to divide the Federation... and conquer it. With Sarek's help, the crew of the Starship Enterprise learns that all is not as it seems. Before they can prevent the Federation's destruction, they must see the face of their hidden enemy - an enemy more insidious and more dangerous than any they have faced before.