Joss Whedon, the executive producer behind Buffy the Vampire Slayer and Angel, reached for curious new heights in the fall of 2002 with the Fox series Firefly, and the fruits of his labor are collected in this four-disc set. Set 500 years in the future, Firefly falls in the category of sci-fi space adventure, yet its flavor is rooted in the Wild West. Earth is pretty much spent, and a totalitarian government known as the Alliance rules the planets where most of its earlier inhabitants have spread. Nathan Fillion stars as Malcolm "Mal" Reynolds, who fought for independence from the Alliance in a civil war, and now captains the Serenity, a ship of outcasts. His crew includes his second-in-command Zoe (Gina Torres), a pilot named Wash (Alan Tudyk), engineering maven Kaylee (Jewel Staite), and career soldier Jayne (Adam Baldwin). Also aboard are Inara (Morena Baccarin), a highly respected prostitute; a preacher known as Shepherd Book (Ron Glass, of Barney Miller fame); and a mysterious pair of siblings -- Simon and River Tam -- portrayed by Sean Maher and Summer Glau, respectively. Although Whedon's Farscape- meets- Bonanza concept clicked straight away with many fans, the series failed to meet Fox's ratings needs, and crashed after 11 episodes, all collected here, in addition to a trio of unaired episodes. Fox could not permanently ground this crew, however; Serenity, a big-screen reunion movie directed by writer-producer Whedon, opened in theaters in September, 2005, drawing generally favorable reviews.