Rescued by Archer from an alien bazaar, a captivating slave girl, Rajiin, uses her erotic, hypnotic mental powers on the crew to steal data on humans for her Xindi overlords. But when her deception is discovered, Archer throws her in the brig, forcing the Reptilian Xindi to storm the ship, weapons blazing, to spring her free.
Meanwhile, Trip and T'Pol initiate a dangerous experiment to insulate the ship from further destruction from strange physical phenomena in the Delphic Expanse.
