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...

Spock awakens with memory loss in the Seattle of 1867. He is befriended by Aaron Stemple, the Bolt brothers, and the young women who have made the long trip to Seattle to marry its pioneers -- all the while not knowing that he has to stop the Klingons from changing the course of history.

The Enterprise orbits Eeiauo in a desperate race to save the inhabitants from a deadly plague. Uhura's secret songs may hold the key to a cure.

When Captain Kirk undertakes a routine diplomatic mission, he leaves the disgruntled Dr. McCoy in command of the Enterprise, but the disappearance of the Captain and a pending Klingon attack force the doctor to make some sober decisions.

Before he commanded the Starship Enterprise, Jean-Luc Picard was the captain of the deep space exploration vessel, the U.S.S. Stargazer, on an incredible twenty-two year voyage. Now Picard is reunited with his old crew for the first time in over a decade, on a mission to see his former first officer installed as ruler of the Daa'Vit Empire. The reunion turns deadly when a ruthless assassin begins eliminating the U.S.S. Stargazer crew one by one. Picard's...

One hundred years ago, four crewmembers of the U.S.S EnterpriseTM crossed the dimensional barrier and found a mirror image of their own universe, populated by nightmare duplicates of their shipmates. Barely able to escape with their lives, they returned, thankful that the accident which had brought them there could not be duplicated, or so they thought. But now the scientists of that empire have found a doorway into our universe. Their plan is to...

Captain Kirk and the crew, along with Captain Picard and his crew--99 years in the future--struggle to fulfill their separate missions. But destiny intervenes to place the fate of each starship in the hands of the other vessel