In 1995, a Russian aircraft carrier is destroyed by a mysterious
creature that just as mysteriously disappears thereafter. Three hundred
years later, Counsellor Deanna Troi awakens in her quarters from a
nightmare in which she senses the voices of the crew of that Russian
ship, whose life-essences were somehow absorbed by the creature that
destroyed them. And the nightmare heralds a danger to the EnterpriseTM
itself, for if Picard can t discover a way to communicate with the
creature, it could absorb his crew just as it did the Russians.