When the Starfire is struck by a mysterious and deadly plague, the captain and crew have no choice but to throw themselves on the mercy of the healers of a nearby, uncharted planet. First Officer Ryan Nelson accompanies the sickest patients to the planet's surface, where he is put under the supervision of Juo-ta-ri, an apprentice to one of the healers who is helping the crew. The two have barely begun to explore the chemistry between them when Ryan's body betrays him and he falls ill as well. Now it's a race against time to see if Juo can bring the fever down before Ryan's hallucinations kill him.