After members of the crew are found unconscious, Tuvok leads a search for the mysterious attacker who seems to prey only on those involved in the Maquis resistance movement, including Chakotay and Torres. Although the victims make seemingly quick recoveries, events take an astonishing turn when Tuvok uncovers the identity of the predator who has left his prey with post-hypnotic suggestion to assume command of the ship by any means necessary.
