As Voyager transports a group of Enarans to their homeworld, Torres begins having intense dreams. Every night, she envisions herself as Korenna, an Enaran woman who's in love with a man named Dathan, much to the chagrin of "Korenna's" father Jareth, a military leader.
Torres shares her unsettling visions with Chakotay, noting that each new dream seems to advance Korenna's story. Chakotay wonders if there might be a connection between the dreams and the presence of the telepathic Enarans. Later, Torres passes out after having a waking vision of Korenna's life.
When she awakens in Sickbay, the Doctor tells Torres that she isn't dreaming; she's experiencing memories that have been specifically implanted in her mind. In her next vision, Korenna realizes that her father is forcibly "resettling" people like Dathan, who are known as Regressives because they reject modern technology. Korenna's face is accidentally scarred by a Regressive attempting to flee Jareth's soldiers. When Torres awakens, she goes to the quarters of an old Enaran woman named Mirell, who has a scar like the one Torres saw in the dream. Mirell admits she is Korenna, and that she planted her memories in Torres's mind so the truth about the fate of the Regressives won't be forgotten when she dies.
Mirell telepathically gives Torres the last part of the story: the night Dathan told Korenna that Jareth was killing the Regressives, not relocating them. Dathan urges Korenna to run away with him, but Jareth tells Korenna that Dathan's lying to her. Convinced that Dathan doesn't really love her, Korenna betrays her lover, and Jareth has him executed as Korenna joins the cheering Enaran mob. When Torres wakes up, Korenna Mirell is dead.
As the Enarans prepare a farewell toast to the crew, Torres bursts in and calls the group murderers. She accuses the Enarans of whitewashing their past, but none of them are willing to listen to her. Finally, a young Enaran woman that Torres had befriended during the trip offers to telepathically link with Torres to receive Korenna's memories. Torres gratefully accepts, knowing that what happened to the Regressives will live on in the Enarans' memories.