This program was aired on AMC network since July 2011 for about four months. Vince Gilligan created this series. It covered various genres including crime drama, black comedy, contemporary western and action thriller. Mark Johnson, Michelle MacLaren, Sam Catlin, Peter Gould, John Shiban, Stewart A. Lyons, Thomas Schnauz, George Mastras, Bryan Cranston, Karen Moore, Moira Walley-Beckett and Patty Lin were the executive producers. The series was produced by High Bridge Entertainment, Sony Pictures Television, and Gran Via Productions. This season was directed by Adam Bernstein, Johan Renck, Scott Winant, David Slade, Colin Bucksey and Terry McDonough starring Bryan Cranston, Anna Gunn, Dean Norris, Aaron Paul, RJ Mitte, Betsy Brandt, Giancarlo Esposito, Bob Odenkirk and Jonathan Banks. Michael Slovis, Nelson Cragg, John Toll, Arthur Albert and Reynaldo Villalobos were the notable cinematographers. This season was covered in thirteen episodes with the approximate duration of forty-seven minutes each.
The production set was established at Albuquerque, New Mexico. Ray Campbell, Lavell Crawford, Matt L. Jones, Javier Grajeda, Jere Burns, Jeremiah Bitsui, Jim Beaver, Charles Baker, Bill Burr, Steven Bauer, Michael Shamus Wiles, Marius Stan, Mark Stan, Mark Margolis, Nigel Gibbs, Christopher Cousins, David Costabile, Emily Rios, Steven Michael and Maurice Compte were the recurring cast for the fourth season. This season was nominated for various awards including the Golden Globe Awards, Screen Actors Guild Awards, Satellite Awards, Saturn Awards, Writers Guild of America Awards, American Cinema Editors Awards, PRISM Awards, IGN Awards, AFI Awards, Edgar Allan Poe Awards, Producers Guild of America Awards and Rooster Teeth Podcast Awards. This episode had more youngsters as audience and about 7.3 million viewers.
Gale Boetticher was killed by Jessie Pinkman as per the plans of Walter White. White feared Gale about his involvement in methamphetamine production. Hank Schrader has the details and evidence of the murder. Walter and Gus keep Hank away from the investigations. Don Eldio Vuente leads the Mexican Cartel against Gus. Mike, Jessie and Gus flees to Mexico. Gus uses the opportunity and poisons the Cartel crew along with Eldio. Gus admires Jessie’s loyalty towards him.
After a series of events, Hank, Walt and Skyler were taken under custody by the DEA. The cigarette loaded with ricin goes missing leaving Jessie shocked. Brock, son of Andrea falls ill, which makes Jessie suspect that he has been poisoned. Walter makes crooked plans to kill Gus. He is killed along with Hector at bomb blast. The rest of the plot deals with Brock, recovering from his illness.