Stardate 41242.2: Data visits his home planet and discovers that his creator also constructed – and, for some unknown reason, disassembled – a “twin brother” of the android: Lore. The crew welcomes Lore with open arms, but they soon discover that the greed Data lacks as a human emotion is indeed possessed by Lore.
teleplay by Robert Lewin and Gene Roddenberry
story by Robert Lewin and Maurice Hurley
directed by Rob Bowman
music by Ron Jones
Guest Cast: Brent Spiner (Lore), Biff Yeager (Chief Engineer Argyle)
LogBook entry by Earl Green