"Cost of Living" is the 120th episode of the American science fiction television show Star Trek: The Next Generation. The 20th episode of the fifth season. It was broadcast in syndication on April 20, 1992. The episode won two Emmy awards. Set in the 24th century, the series follows the adventures of the Starfleet crew of the Federation starship Enterprise-D. In this episode, as undetectable parasites devour the ship, Lwaxana Troi takes Worf's son Alexander under her wing encouraging him to adopt her carefree ways en route to meeting a man she's blindly agreed to marry.