A crisis on the planet brings the U.S.S. Enterprise and Mr. Spock to Vulcan in its time of need. The entire history of Vulcan and its innermost secrets are laid bare in the struggle to save the Federation and Vulcan.

"The crew of the U.S.S. Enterprise--including Captain James T. Kirk, First Officer Spock, Doctor Leonard McCoy, Lieutenant Nyota Uhura, Chief Engineer Montgomery Scott, Lieutenant Hikaru Sulu, and Ensign Pavel Chekov--is called back home. But an unstoppable force of terror from within their own organization has declared all-out war on Starfleet and everything it stands for, leaving Earth in a state of crisis. Now with a personal score to settle as...