chunk: In 2371, the crew of the USS Enterprise-D celebrate the promotion of Worf to Lieutenant Commander. Captain Jean-Luc Picard receives a message that his brother and nephew were killed in a fire, meaning the storied Picard family line will end with him. Enterprise receives a distress call from an observatory in orbit of the star Amargosa, where they rescue the El-Aurian Dr. Tolian Soran. The android Data and engineer Geordi La Forge discover a compound called trilithium in a hidden room of the observatory. Soran appears, knocks La Forge unconscious, and launches a trilithium solar probe at Amargosa. The probe causes the star to implode, sending a shock wave toward the observatory. Soran and La Forge are transported away by a Klingon Bird of Prey belonging to the treacherous Duras sisters, who had stolen the trilithium for Soran in exchange for the designs for a trilithium weapon. Data is rescued just before the station is destroyed by the shock wave.