All Hell Breaks Loose (Supernatural)

"**All Hell Breaks Loose**"
"All Hell Breaks Loose"
Supernatural episodes
	The demon Azazel is shot dead by Dean Winchester at the finale's end, bringing to a close a storyline running throughout the first two seasons.
Episode nos.	Season 2; Episodes 21–22
Directed by	Robert Singer (Part 1); Kim Manners (Part 2)
Written by	Sera Gamble (Part 1)
Story by	Eric Kripke & (Part 2); Michael T. Moore (Part 2);
Teleplay by	Eric Kripke (Part 2);
Production code	3T5521 & 3T5522
Original air dates	May 10, 2007 (Part 1); May 17, 2007 (Part 2);
Guest appearances
	Part 1 Jim Beaver as Bobby Singer; Fredric Lehne as Azazel; Samantha Smith as Mary Winchester; Chad Lindberg as Ash; Gabriel Tigerman as Andrew "Andy" Gallagher; Katharine Isabelle as Ava Wilson; Aldis Hodge as Jake Talley; Jessica Harmon as Lily; Part 2 Jim Beaver as Bobby Singer; Samantha Ferris as Ellen Harvelle; Jeffrey Dean Morgan as John Winchester; Fredric Lehne as Azazel; Aldis Hodge as Jake Talley; Ona Grauer as Crossroads Demon;
Episode chronology
← Previous; "What Is and What Should Never Be"	Next →; "The Magnificent Seven"
	Supernatural season 2
	List of episodes

"All Hell Breaks Loose" is the joint title for the two-part second-season finale of The CW television series Supernatural. It consists of the twenty-first and twenty-second episodes of the second season. "Part One" was first broadcast on May 10, 2007, and the second part aired the following week on May 17, 2007. The narrative follows series protagonist Sam Winchester (Jared Padalecki)—a young man who travels the continental United States with his brother Dean (Jensen Ackles) hunting supernatural creatures—as he is abducted by series villain Azazel (Fredric Lehne) and sent to an abandoned town. Azazel intends to find a leader for his demon army by having Sam and other psychic children like him fight to the death. Sam is eventually killed, but is resurrected after Dean sells his soul. The sole survivor, Jake Talley (Aldis Hodge), is sent by Azazel to a cemetery protected against demons, where he opens a gateway to Hell. At the end of the episode, Azazel is finally killed by Dean with the mystical Colt revolver, but not before hundreds of demons are released into the world.

The production process was plagued with problems, and changes had to be made throughout filming. "Part One's" setting was altered after production learned of a pre-existing set, which had been used for the western television series Bordertown. The choice of location in turn influenced the type of supernatural monster that was featured. The once-epic script of "Part Two" had to be toned down due to budgetary reasons, with weather conditions forcing the episode's climax to be filmed on a sound stage rather than on location. The scenes featuring the return of John Winchester (Jeffrey Dean Morgan) had to be filmed weeks in advance using blue screen due to the actor's limited availability.

Despite season-low ratings, the episodes garnered positive reviews from critics, who praised both the writing and the decision to end the main storylines. Fredric Lehne's and Ona Grauer's performances were also applauded, with Jessica Harmon gaining a Leo Award nomination for her role.