Nihilism

Nihilism is the 10th episode of Season 14. It aired on January 17, 2019.

Summary
Michael has re-taken control of Dean as his army of monsters continues to move in on our heroes. Sam devises a plan to try and reach Dean and stop Michael before anyone else has to die.

Plot
In his room, Dean is talking to himself in a mirror where he tells himself that he is still in control of his body while Alternate Michael is in his subconscious continuously bashing on the locked door and screams to be released. Dean continues to worry over his control before Billie appears and notes on the screaming in Dean's mind keeping him occupied. Dean thanks her for the assist she provided as she shrugs it off to the matter at hand. She reminds him of her warnings of dimension traveling and the danger it brings. Dean justifies it since Michael is now trapped but Billie is not so sure, she tells Dean of his shelf of possible deaths and they have all changed to the same thing. She reveals that each detail of how Michael will escape to take control of Dean and destroy the world. Billie shows the shocked Dean that only one details an alternate way as she hands him a folder. Reading the contents, a stunned Dean questions this and Billie tells him its all on his choice before she disappears.

Main Cast

 * Jared Padalecki as Sam Winchester
 * Jensen Ackles as Dean Winchester and Alternate Michael
 * Misha Collins as Castiel
 * Alexander Calvert as Jack Kline

Guest Stars

 * Lisa Berry as Billie
 * Katherine Evans as Maggie
 * Traci Dinwiddie as Pamela Barnes

Co-Stars

 * TBA. as Violet

Featured Supernatural Beings

 * Angel
 * Archangel
 * Crossroad Demon
 * Ghouls
 * Nephilim
 * Primordial Entity
 * Reaper
 * Rugaru
 * Seraph
 * Shapeshifter
 * Vampires
 * Werewolf
 * Witch

Continuity

 * The episode picks up right after the events in The Spear.
 * Billie previously appeared in Funeralia.
 * Pamela Barnes previously appeared in Dark Side of the Moon.
 * Pamela's blindness was mentioned, it occurred in Lazarus Rising.
 * Alternate Michael mentions Castiel's quotes "I'm the one who gripped you tight and raised you from Perdition", which occurred in Lazarus Rising.
 * Garth Fitzgerald IV was mentioned in this episode. He previously appeared in The Spear.
 * Rowena MacLeod was mentioned in this episode. She previously appeared in Unhuman Nature.
 * Alternate Bobby Singer and Mary Winchester were mentioned in this episode. They previously appeared in Nightmare Logic.
 * Alternate Castiel was mentioned in this episode. He previously appeared in Exodus.
 * Jessica was mentioned in this episode. She previously appeared in Funeralia.
 * Crowley was mentioned in this episode. He previously appeared in All Along the Watchtower.
 * God was mentioned in this episode. He previously appeared in Alpha and Omega.
 * Gadreel was mentioned in this episode. He previously appeared in Do You Believe In Miracles?.
 * John Winchester was indirectly mentioned in this episode. He previously appeared in All Hell Breaks Loose - Part 2.
 * Michael was mentioned in this episode. He previously appeared in Swan Song.
 * Billie mentions Dean's shelf of possible deaths, which was seen in Advanced Thanatology.
 * Flashbacks of Unhuman Nature are seen.

Trivia

 * Sam and Castiel enter Dean's mind in this episode, similar to the way Dean did to Mary in Who We Are.
 * Jack Kline uses his supernatural powers for the first time since Let the Good Times Roll.
 * Alternate Michael has been imprisoned in Dean Winchester's mind in this episode. As of this episode, both versions of Michael are imprisoned.
 * Alternate Michael reveals that Reapers in Apocalypse World are enslaved by angels after Death was locked away.
 * Billie states Dean's cause of deaths has changed to Alternate Michael taking control and destroying the world. She also states only one has remain and leaves Dean the option to choose it.

Behind the Scenes
TBA.