Plot summary
The Federation starship Enterprise arrives at the planet Haven, where the ship's Betazoid Counselor Deanna Troi has been summoned by her mother Lwaxana. Troi had previously been set into an arranged marriage to the young human doctor, Wyatt Miller (Robert Knepper), and his parents have since tracked down Lwaxana to enforce the marriage. After Lwaxana and the Millers are welcomed aboard the Enterprise, the parents argue over whose cultural traditions will be honored at the ceremony. Troi and Wyatt attempt to get to know each other but find it difficult, as Troi is still in love with Commander William Riker (Jonathan Frakes). Wyatt has had numerous dreams of another woman with whom he has fallen in love, and had initially believed her to be Troi communicating telepathically with him.
The Enterprise then learns of an unmarked vessel approaching Haven. Captain Picard (Patrick Stewart) recognizes it as Tarellian, a race thought to have been wiped out by a highly lethal and contagious virus. When they contact the ship, they find a handful of Tarellian refugees who have been traveling at sub-light speeds to Haven in hopes of finding an isolated location to live out the rest of their lives in peace. Picard insists that they cannot go to the planet for fear of spreading the virus, and has the Tarellian vessel placed in a tractor beam.
Wyatt recognizes one of the Tarellians, Ariana (Danitza Kingsley), from his dreams, and she too recognizes him. He tells Dr. Crusher (Gates McFadden) that he will transport some medical supplies to them, but transports himself along with the supplies. When the crew discovers this, Wyatt's parents demand that Picard bring Wyatt back to the Enterprise, but Troi insists that he cannot return, as he would now carry the Tarellian virus. Wyatt tells his parents, Troi, and the rest of the crew that he knew this was his destiny and is happy to try to help cure the Tarellians. He convinces the Tarellians to leave Haven and search for help elsewhere. Picard orders the tractor beam to be dropped and allows the vessel to depart the system.
Credits
Adapted from Wikipedia contributors, Haven (Star Trek: The Next Generation). Paragraphs and formatting adjusted; illustrations, reference markers, block quotations and non-story material omitted.