The hunters discover that Samuel Colt created a massive devil's trap in Wyoming using railway lines to guard a gateway to Hell.
" All Hell Breaks Loose (Part 2) " is the emotional and high-stakes finale of Supernatural Season 2, originally aired on May 17, 2007. Following Sam’s shocking death in the previous episode, Dean is consumed by grief and makes a desperate crossroads deal , selling his soul for Sam’s resurrection but receiving only one year to live. Key Plot Developments
During the final battle, the spirit of John Winchester escapes Hell to distract Azazel, giving Dean the opening to kill the demon with the final bullet from the Colt. [S2E22] All Hell Breaks Loose (2)
The brief, silent reunion with John's spirit provides a rare moment of closure for the family after their long hunt.
Azazel (the Yellow-Eyed Demon) forces Jake Talley to use the Colt as a key to open the gateway, releasing hundreds of demons and ghosts into the world. The hunters discover that Samuel Colt created a
While the brothers finally avenge their mother’s death, they realize a demonic army has been unleashed, and Sam vows to find a way to save Dean from his looming deal. Character Arcs & Themes
The episode highlights Dean's intense self-sacrificial nature and his perceived "one job" to protect Sam. Key Plot Developments During the final battle, the
Resurrected Sam kills Jake in cold blood, marking a significant step toward his darker path in later seasons.