"Days Gone Bye" is the pilot episode of the post-apocalyptic horror television series The Walking Dead. It originally aired on AMC in the United States on October 31, 2010. The episode's teleplay was written and directed by Frank Darabont, the series creator. Robert Kirkman, the creator of the eponymous series of comic books, considered the idea of creating a television show based on the comic series, but did not move forward. Frank Darabont expressed interest in developing the series for television. In January 2010, AMC formally announced that it had ordered a pilot for a possible series adapted from The Walking Dead comic book. In the announcement, the executives stated that Darabont would serve as writer, director, and an executive producer alongside Gale Anne Hurd. Principal photography for the pilot commenced in May 2010 in Atlanta, Georgia. It was wholly shot on 16 mm film, and was edited using computer-generated imagery. "Days Gone Bye" was heavily promoted in the months preceding its release; as part of an expansive advertising campaign, zombie invasion events were coordinated in selected locations including New York City, Washington, D.C., London, and Madrid. The episode premiered in 120 countries worldwide. "Days Gone Bye" was critically well received, praising Andrew Lincoln's performance and Darabont's direction. Several critics compared it to Lost. In the United States, the series premiere achieved a viewership of 5.35 million, making it the most-watched series premiere in its network's history. The episode garnered a Nielsen rating of 2.7 in the 18–49 demographic, translating to 3.6 million viewers. Plot The episode opens in medias res as former Sheriff's Deputy Rick Grimes (Andrew Lincoln) scavenges for gas and supplies at an abandoned convenience store on a deserted highway in rural Georgia. He spots a little girl (Addy Miller), but she turns out to be a zombie. When she shambles towards him, Rick shoots her in the head. Returning to several weeks prior, Rick is seriously injured while chasing down criminals alongside his partner and childhood friend Shane Walsh (Jon Bernthal); he is shot in the shoulder and goes into a coma. Hospitalized after the injury, Rick experiences a series of dreamlike encounters with friends and family. When he regains consciousness, he finds the hospital abandoned and horrifically ransacked: the walls are sprayed with blood, destroyed equipment is everywhere, and dead bodies litter the hallway. He walks past a set of double doors secured with heavy