Fringe is an American science fiction television series created by J. J. Abrams, Alex Kurtzman, and Roberto Orci. It premiered on the Fox Broadcasting network on September 9, 2008, and concluded on January 18, 2013, after five seasons and 100 episodes. The series follows Olivia Dunham (Anna Torv), Peter Bishop (Joshua Jackson), and Walter Bishop (John Noble), members of the fictional Fringe Division of the Federal Bureau of Investigation, based in Boston, Massachusetts, under the supervision of Homeland Security. The team uses fringe science and FBI investigative techniques to investigate a series of unexplained, often ghastly occurrences, which are related to mysteries surrounding a parallel universe. The series has been described as a hybrid of The X-Files, Altered States, and The Twilight Zone.