Enterprise has returned to dry dock to finish its refit before commencing its second five-year mission. The crew has been granted a two-week period of shore leave before preparations for their next voyage begins. Shaken by their encounter with V’ger, Kirk, Spock, and Sulu travel to their respective homes and must reflect upon their lives—now forever changed.

    Spock, and Dr. McCoy struggle to establish new lives apart from each other and the starship. The newly-promoted Admiral Kirk is placed in charge of a specially-created Starfleet division and attempts to defuse a critical hostage situation; Mr. Spock, who, in the midst of a teaching assignment on Vulcan, finds the one thing he least expected; and Dr. McCoy, whose unerring instinct for trouble lands him smack in the middle of an incident that could trigger an interstellar bloodbath.

    One of the most popular and compelling Star Trek characters ever created, Dax is a wormlike being who is joined body and soul to a succession of humanoid hosts. Each life is different, each body is different, each personality is different, but all of them are Dax. At one time or another Dax has been male, female, a Starfleet officer, a statesman, a scientist, and ambassador, even a serial killer. The symbiont's humanoid hosts have included Curzon, friend of Klingons, and Jadzia, science officer on Deep Space Nine and latterly wife of Worf. The most recent incarnation is Ezri Dax, station counsellor on Deep Space Nine. Designed to appeal to fans of every version of Star Trek, the stories in The Lives of Dax each show a different host's adventure—nine incredible lives stretched out over 357 years of Star Trek history. The stories are rich with different aliens, planets, battles, personal struggles, surprising revelations, and guest stars galore.

    With the signed treaty safely in hand, they board the Starship Enterprise and head home. Spock is fascinated by the easy acceptance of his Vulcan culture by the bright, adventurous Starfleet crew headed by Captain Robert April and his first officer, Christopher Pike. Spock, half-Vulcan, half-human, is now torn between accepting his position at the Vulcan Science Academy or joining the cadets at Starfleet Academy. Before he can decide, however, he and Sarek discover that not everyone is happy with the treaty. First, rebel forces attempt an assault on the Enterprise, and then Spock's own family is stalked. Spock has a hunch about who is behind the attacks. But to find out -- and set the course for his own destiny -- he'll have to trust his human side.

    Its most honored captain is in disgrace, its most celebrated starship in pieces, and the crew of that ship scattered among the thousand worlds of the Federation... Thus begins Prime Directive, an epic tale of the Star Trek universe. Following in the bestselling tradition of Spock's World and The Lost Years, Judith and Garfield Reeves-Stevens have crafted a thrilling tale of mystery and wonder, a novel that takes the Star Trek characters from the depths of despair into an electrifying new adventure that spans the galaxy. Journey with Spock, McCoy, and the rest of the former crew of the Starship Enterprise to Talin—the planet where their careers ended. A world once teeming with life that now lies ruined, its cities turned to ashes, its surface devastated by a radioactive firestorm—because of their actions. There, they must find out how—and why—this tragedy occurred and discover what has become of their captain.