Supernatural season 4 Episode 22 Synopsis:
In the season finale of Supernatural Season 4 (episode 22) which was aired last May 14, 2009 (6/14/09), Sam and Dean prepare for their biggest challenge. Bobby and Dean realized that killing Lillith will break the last seal which will rise Lucifer. Dean must find where Sam is so they can put there differences aside so he can tell Sam and Ruby that they cannot just kill Lillith.
Ruby and Sam used one of Lilith’s minions to find out where she’s hiding.
Meanwhile, Dean is faced with a difficult decision of whether or not he must kill his brother. He must reach his brother in time or else Sam may unknowingly break the 66th seal and cause the Apocalypse.
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