S
Collect horseman accessories
Dean secretly watches soap operas
Winchester ancestor made demon deal
Ruby betrays Sam for Lucifer
Ghostfacers handle case alone
Roadhouse burns down in finale
Victor reluctant ally
Gabriel becomes unlikely ally
Major battle occurs in Indiana
Sam sacrifices something to save world
Biblical numerology recurring theme
Sam becomes ruthless, possibly demon
Sam’s powers return stronger, unstoppable
Cas saves Dean from hell
Lucifer becomes Big Bad
A
Angels and demons try to create new vessels
Sam’s morality flips dark arc
Dean’s arc focuses on guilt, depression
Gifted humans are half-demon
Crowley becomes ally like Spike
Episode where minor characters solve a case
Angels demons wage holy war
B
Sam saves Dean from fire finale
Sam plays older brother later
Shaky-cam documentary episode
Angel blood results in false prophet
Lilith needs Sam’s willing consent
C
Sam develops psychometry powers
Sam turns evil to save Dean
Jo dies in season finale
God wants Dean kill Lilith
Castiel becomes fallen angel
Artifact to exorcise demons faster
Sam’s powers drain his lifeforce
D
Young Dean sees the future
Dean, Sam, Ruby body swap
Sam loses psychic powers
Bobby has a terminal illness
Dean’s ring is tracking device
Yellow Eyes child who reads thoughts
Dean learned demon language in hell
Sam stops heart to reach hell
Mary and John escape hell
Death controls puppet zombie town
Unknown
Lucifer wants to replace God
Colt cannot kill Cain/Able/Death/Lucifer/God
Dean’s fear of flying exploited
Winchesters trapped inside magic book
Magic tied to central entity
Winchester sons destined to kill each other
God perpetuates brother/brother fights
Jessica/Mary memories wiped by Yellow Eyes
Disney-style musical episode
World forgets apocalypse aftermath
Dean meets younger self episode
Demon houses with symbols
Celebration at baby 100k odo
Sam at end of S5 is only Sam's body
Dude ranch episode
Sam’s fire nightmares are Big Bad attacks
Cain becomes next villain
Mirror universe episode
Lucifer is a party-lover
Dean didn’t sleep in hell
Dean Anna future half-angel son
Dean and Cas bond over evil Sam
Winchester becomes temporary grim reaper
Human trapped in animal due to magic duel
Villain-to-hero-to-villain romance arc
Teen Sam used dangerous dark magic
Dean develops addictive vices
Joshua (angel) secretly God
John Mary resurrected
Spear of destiny to hill Lucifer
Fairy blood addictive
Dean teaches Cas to drive
Ruby grooming Sam for hell leadership
Crossbow becomes next special weapon
Demons cause horror-movie behavior in humans
Show-within-show infiltration episode
Chuck’s books become TV show
Dean gets rich episode
Special weapons (kill anything, bring anything back to life, etc)
Hive mind episode
Sam and Dean trapped in suburbia episode
Trickster is Loki or offspring of Loki
Nephilim character
A n that grants invulnerability
Monstorous unicorn
Twin angels played by same actor
Zoo animals possess humans
God appears to stop war
Ice cream truck that kidnaps children
Sentient Baby (car) episode
