When did Supernatural Season 12 Episode 20 air?
Supernatural Season 12 Episode 20 aired on May 4, 2017.


Between darkness and deliverance.
When they were boys, Sam and Dean Winchester lost their mother to a mysterious and demonic supernatural force. Subsequently, their father raised them to be soldiers. He taught them about the paranormal evil that lives in the dark corners and on the back roads of America ... and he taught them how to kill it. Now, the Winchester brothers crisscross the country in their '67 Chevy Impala, battling every kind of supernatural threat they encounter along the way.

Alicia Banes calls Mary for help after her mother, Tasha, goes missing. Sam answers Mary’s phone and he and Dean head out to help Alicia and her twin brother, Max, find their mother who was hunting a powerful witch. Meanwhile, Mary starts to have some doubts about the British Men of Letters.
Direct answers for episode-level questions and details.
Supernatural Season 12 Episode 20 aired on May 4, 2017.
This episode runs for approximately 42 minutes.
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