Writer(s): Lawrence V. Conley Director(s): Cliff Bole
Susan Diol as Carmen
Ellen Geer as Dr. Marr
Synopsis: The crystalline entity which destroyed the colonists at Omicron Theta III attacks the new colony at Milona IV. Riker and Data help the colonists survive the attack by leading them into caves with a chemistry that the entity apparently can’t penetrate. This is the first time that there have been survivors of an attack and Dr. Marr is dispatched to the area to study the planet and interview the survivors. Dr. Marr has made it her life’s work to study the entity ever since her son was killed by the entity on Omicron Theta III. The Enterprise, with Dr. Marr on board pursues the crytalline entity in the hopes of being able to communicate with it and find a way to prevent further destruction. Dr. Marr seems obsessed with not only destroying the entity but also with Data, who apparently has the memories and journal entries of her son in his memory banks.