Ferengi Daimon Bok attempts revenge for an old battle on Picard with a mind-altering machine. While in command of the U.S.S. Stargazer, Captain Picard destroyed a Ferengi vessel commanded by Bok's son.

Frank Corsentino (Daimon Bok)
Doug Warhit (First Officer Kazago)
Robert Towers (Second Officer Rata)

• Daimon Bok returns to try again in the 7th season episode "Bloodlines".
  
• The Constellation-class U.S.S. Stargazer NCC-2893 was thought to have been destroyed at Maxia Zeta 9 years previously, but it was salvaged by the Ferengi. Captain Picard was courtmartialed for losing the ship, but he was absolved of all charges.
  
• Troi senses deception and danger from the Ferengi. It will later be established that Betazoids can not read Ferengi minds.