Star Trek scripts have often grappled with dilemmas of medical ethics. The most explicitly medical-ethics-oriented Star Trek episode is named, aptly enough, “Ethics.” The script was written by Sara Charno and Stuart Charno, authors of two other Star Trek episodes. “Ethics” first aired on 2 March 1992. In the fall of 1992, we began to use this “Ethics” episode to motivate discussions in our first-year medical students’ course on medical ethics and the doctor-patient relationship. We asked students to write essays (...) addressing one of the many ethical dilemmas posed by the episode. Over the years, the episode has become a tradition. Both students and instructors find the formulation of dilemmas in the context of a science-fiction story to be both liberating and stimulating. In this essay, we will discuss this particular episode in some detail and then provide a brief synopsis of other episodes that might be used in ethics courses in a similar way. (shrink)