Plot summary
On entering a new sector of the Delta Quadrant, the USS Voyager meet the Nasari for the first time. Although the aliens show no hostility, Ensign Harry Kim fires on their starship, and claims he knew clairvoyantly they were preparing an attack. Despite sustaining heavy damage, Voyager escapes, and Captain Kathryn Janeway suspends Kim from duty. Kim notices a rash on his face after having strange dreams, and The Doctor cannot identify its cause. After Janeway confirms Kim was right about the Nasari, he recounts other moments of déjà vu.
The Nasari return, and Kim instinctively advises the crew to flee to the nearby planet, Taresia. There, they are defended by the Taresians, and their leader Lyris greets Kim as a member of her species. She says Kim was sent to Earth as an embryo and implanted in a human woman. He then assumed genetic traits from his human parents, but his DNA kept certain characteristics, including an urge for space exploration. Lyris attributes Kim's recent actions to the reactivation of his dormant Taresian genes.
After befriending a male Taresian, Taymon, Kim learns that since the Taresians are predominantly female, men are treated as valuable. He participates in Taymon's marriage ceremony with three women. Meanwhile, Voyager attempts to negotiate with the Nasari captain Alben for safe passage. The Doctor discovers Kim is human and a retrovirus implanted the Taresian genes. The Taresians activate a polaron grid blocking communication or transportation with the planet. Kim increasingly doubts his situation, resisting sexual advances from two women, and finds Taymon's desiccated remains. The Taresians inform him their method of reproduction involves draining the male's DNA, and they harvest men from alien species to compensate for their exclusively female population. After penetrating the grid, Voyager rescues Kim and escape amidst the Nasari's battle with the Taresians. After the foreign DNA is extracted from his system, Kim talks to Neelix about Odysseus ' encounter with the Sirens.
Credits
Adapted from Wikipedia contributors, Favorite Son (Star Trek: Voyager). Paragraphs and formatting adjusted; illustrations, reference markers, block quotations and non-story material omitted.