[s1e22] — Devil's Trap

In the Season 1 finale of Supernatural , " Devil's Trap ," Sam and Dean seek help from Bobby Singer to locate their kidnapped father, ultimately trapping and exorcising the demon Meg. The brothers discover their father is possessed by Azazel and narrowly escape before a devastating car crash leaves them in critical condition.

You can watch this episode or read the full transcript on Super-wiki or IMDb . "Supernatural" Devil's Trap (TV Episode 2006) - IMDb