James Doohan

Admiral Kirk's defeat of Khan and the creation of the Genesis planet are empty victories. Spock is dead and McCoy is unexplainably being driven insane. Then an unexpected visit from Sarek, Spock's father, provides a startling revelation: McCoy is harboring Spock's living essence. With one friend alive and one not, but both in pain, Kirk attempts to help his friends by stealing the Enterprise and defying Starfleet's Genesis planet quarantine.

Branded as fugitives by the Federation they swore to protect, the crew dutifully returns to Earth to face charges for crimes committed in the course of rescuing a resurrected Spock, but while en route, they learn that Earth is being ravaged by a strange alien probe demanding a response from a life form that no longer exists.