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Unbeknownst to the rest of the crew, Captain Picard is kidnapped and replaced by an evil alien replica. At first put off by "Picard's" strange behavior, his colleagues nonetheless resign themselves to following his every order. But will their loyalty remain intact as the false Picard embarks upon a disastrous course of action, and will the real Picard manage to force his captors to see the fatal error of their ways? First aired on March 31, 1990, "Allegiance" was written by the seasoned Next Generation team of Hans Beimler and Richard Manning.