Star Trek: The Next Generation Episode 114: Conundrum

VHS, PARAMOUNT

After an unidentified alien ship scans the Enterprise, everyone on board suffers from amnesia. Although none of the crew can remember who they are, they still possess the skills to operate the ship. According to the computer, a Commander Keiran MacDuff (Erich Anderson) is now second-in-command and the Federation is at war with the Lysians. The Enterprise has been ordered to destroy the Lysian command center and maintain radio silence throughout the mission. After obliterating a technologically inferior Lysian ship, Picard (Patrick Stewart) doubts his orders and searches for a way to restore the crew's memories. As they close in on their target, the crew must solve one of their most perplexing puzzles before they are tricked into destroying innocent lives.