Power Rangers Lost Galaxy is an American television series and the seventh season of the Power Rangers franchise, based on the Super Sentai series Seijuu Sentai Gingaman. The series was the first to follow the Sentai tradition of a new cast with each new series. The character Kendrix (Valerie Vernon) was killed off two-thirds through the season, marking the first time that a Ranger was killed off in the series. Kendrix was written out of the show so actress Vernon could be treated for leukemia. Her treatment was successful and she returned for the season finale. This particular season of Power Rangers has been noted to be the most expensive production of the series to date.