Season 4 Episode 22 Lucifer Rising

As the Apocalypse approaches, Castiel and Zachariah inform Dean that his moment of glory draws nigh. Sam, disagreeing, goes with Ruby to take on Lilith.

Season 4 Episode 21 When The Levee Breaks

Sam is locked in Bobby's panic room to cleanse his body from demon blood. However, after several seals are broken Bobby wants to set Sam free to help stop the Apocalypse and Dean seeks out Castiel for help.

Season 4 Episode 20 The Rapture

Dean has a dream about Castiel asking to meet him in private. Sam and Dean are shocked to discover Castiel's human host, Jimmy, is back in control. Jimmy wants his life back but Sam and Dean believe he is in danger.

Season 4 Episode 19 Jump the Shark

Sam and Dean are on a hunting trip when they receive a call from an Adam Milligan, who is trying to find John Winchester. They discover that Adam was conceived 19 years ago when his mother fell in love with John Winchester.

Season 4 Episode 18 The Monster at the End of this Book

Sam and Dean come across a series of comics called Supernatural depicting their lives as demon hunters in detail. The brothers meet the author of the comics, Carver Edlund, who explains he has visions of Sam and Dean in action then puts their adventures in the comics.

Season 4 Episode 17 It's a Terrible Life

Dean and Sam now lead ordinary lives. Dean works in the corporate world at the Sandover Bridge & Iron Company along with Sam who works as a Tech Support. Both have no idea who the other is until their colleagues start killing themselves.

Season 4 Episode 16 On the Head of a Pin

Angels get slaughtered by Lucifer's sword. Castiel and Uriel hold Alastair captive and ask Dean to use his newfound techniques in torture to take valuable information that can put an end to the murders. Dean learns some shocking facts from Alastair.

Season 4 Episode 15 Death Takes a Holiday

Sam and Dean seek help from Pamela, who sends the brothers to the spiritual realm. They discover Alastair attempting to break the seal causing mayhem in the mortal world by stopping death from occurring in a small town.

Season 4 Episode 14 Sex and Violence

A siren casts a spell on Sam and Dean while they are on a mission in Iowa, leading to their violent behavior.

Season 4 Episode 13 Afterschool Special

Sam and Dean investigate a haunting at one of the high schools they attended as teenagers.

Season 4 Episode 12 Criss Angel Is A Douche Bag

Sam and Dean are faced with magicians delving in black magic. They investigate after several people wind up dead in ways similar to the illusions the magicians perform on stage.

Season 4 Episode 11 Family Remains

Sam and Dean investigate a house occupied by a female ghost, but when a new family moves in things take a turn for the worse.

Season 4 Episode 10 Heaven and Hell

Dean and Sam figure out why Castiel and Uriel want Anna dead. Alastair and his minions try to track down Sam, Dean and Anna.

Season 4 Episode 09 I Know What You Did Last Summer

Sam, Dean, and Ruby look for Anna who hears the voices of angels. When Ruby seemingly betrays the brothers and leaves with Anna, Sam enlightens Dean on how Ruby saved Sam's life while Dean was in Hell.

Season 4 Episode 08 Wishful Thinking

The Winchesters investigate a town wishing well that really grants wishes... at a terrible cost.

Season 4 Episode 07 It's the Great Pumpkin, Sam Winchester

Sam and Dean meet Castiel and his fellow angel Uriel, who warn the brothers to avoid intervening in a town plagued by demons.

Season 4 Episode 06 Yellow Fever

Sam and Dean investigate the mysterious deaths of several men who seemingly died of fright. Dean becomes infected with it starting as anxiety then leading to a full-blown terror which ends in death. Sam and Bobby race against time to save Dean.

Season 4 Episode 05 Monster Movie

Sam and Dean face off against a shapeshifter with a serious liking for '30s horror movies.

Season 4 Episode 04 Metamorphosis

Sam and Dean find Jack who is changing into a rugaru, a flesh-eating demon that preys on humans. Sam and Dean have a disagreement on how to deal with Jack.

Season 4 Episode 03 In the Beginning

Dean gets transported back in time and ends up in Lawrence, Kansas, where he crosses pathes with a young version of his parents, who have just fallen in love.