Firefly

Joss Whedon got the idea after reading The Killer Angels, Michael Shaara's novel of Gettysburg, and wanted to follow people who had fought on the losing side of a war into a hard pioneer life afterward — "a Stagecoach kind of drama," as he put it, with the grit he felt television science fiction had lost. Firefly is set in 2517, after humanity has settled a new star system; the United States and China have merged into the Alliance, people curse in Mandarin and talk in Old West cadences, and Nathan Fillion's Malcolm Reynolds, a former Independent sergeant from the losing side, keeps a Firefly-class ship called Serenity flying by smuggling and cargo-running with eight others aboard. Whedon pitched it as "nine people looking into the blackness of space and seeing nine different things."

Fox rejected the two-hour pilot, finding it short on action and the captain too "dour," and told Whedon on a Friday that a new pilot script was due Monday. He and Tim Minear wrote "The Train Job" over the weekend. The network refused to air the show in widescreen, scheduled it on Friday nights from September 20, 2002, ran three episodes out of production order, promoted it as an action-comedy, and preempted it for sports. Whedon had designed a seven-year story. By mid-December Firefly was averaging 4.7 million viewers and sitting 98th in the Nielsen ratings, and Fox cancelled it after eleven of the fourteen finished episodes had aired; the last three debuted in Britain the following year.

The fans, calling themselves Browncoats after Mal's old army, had organized before the axe fell, with a postcard campaign to Fox and then a drive to get UPN to pick it up. That failed, but it produced a DVD set in December 2003, in the intended order and in widescreen, that had sold about 500,000 copies by early 2006. Browncoats raised more than $14,000 to put sets aboard 250 U.S. Navy ships, and in June 2007 an astronaut carried the discs to the International Space Station. The show won a 2003 Emmy for visual effects, and the continuing noise persuaded Universal to make Serenity, Whedon's first feature as a director, released on September 30, 2005, under that title because Fox still owned the name Firefly. It opened second, grossed $25.5 million in the United States and $40.4 million worldwide, and won the Hugo Award for Best Dramatic Presentation.

The tagline "Can't stop the signal" gave its name to Can't Stop the Serenity, the charity screenings fans began in 2006 and repeated annually for years afterward. Ten thousand people lined up for the cast's tenth-anniversary panel at Comic-Con in 2012, TV Guide ranked it fifth among shows cancelled too soon, and in March 2026 Fillion confirmed an animated series was in development.