The U.S.S. Enterprise™ is ambushed in an uncharted sector of space. Shields are down, weapons are off-line, and key personnel are wounded. The attacker remains unknown, flying a warship configured with engineering and technological specifications of Starfleet, Romulan and Borg vessels. Captain Jean-Luc Picard and his crew fight to find the right answers—before they are all destroyed by the ultimate killing machine.