Season 3
Season three consists of 16 episodes that aired on Thursdays at 9:00 pm in the United States beginning October 4, 2007, and ending May 15, 2008. Originally 22 episodes were ordered for the third season, but production was halted on December 5, 2007, upon completion of the twelfth episode by the 2007–2008 Writers Guild of America strike. The season number was shortened to sixteen episodes, with four new episodes airing in April and May 2008.
The season mainly focuses on trying to save Dean from his deal and tracking down the demons that were released from the gate. Along the way, the brothers meet Ruby, a "good" demon, who has an interest in Sam and claims to be able to help save Dean. Also, they meet Bela Talbot, an acquirer and seller of occult objects, who is constantly a thorn in their side. The brothers eventually learn from Bela which demon holds Dean's contract: a powerful demon named Lilith. Lilith takes Bela's soul after her contract expires, but not before she warns Sam and Dean. The brothers, along with Ruby, track Lilith down and attempt to kill her. Lilith is unable to stop Sam on account of to his mysterious abilities; however, Dean's contract expires and his soul is taken to Hell.
The season mainly focuses on trying to save Dean from his deal and tracking down the demons that were released from the gate. Along the way, the brothers meet Ruby, a "good" demon, who has an interest in Sam and claims to be able to help save Dean. Also, they meet Bela Talbot, an acquirer and seller of occult objects, who is constantly a thorn in their side. The brothers eventually learn from Bela which demon holds Dean's contract: a powerful demon named Lilith. Lilith takes Bela's soul after her contract expires, but not before she warns Sam and Dean. The brothers, along with Ruby, track Lilith down and attempt to kill her. Lilith is unable to stop Sam on account of to his mysterious abilities; however, Dean's contract expires and his soul is taken to Hell.