Dean, Sam and Castiel try to find Lucifer and send him back to hell.

A fan tricks Dean and Sam into attending a "Supernatural" fan convention.

Dean and Sam are thrown into an alternate universe by the Trickster where they are characters in different TV series.

Dean and Sam learn that a witch is running a poker game where the currency is life years versus money; Dean tries to intervene when Bobby starts losing the game.

Dean and Sam investigate a series of murders that resemble fairy tales and urban legends; the brothers track down an 11-year-old boy that Castiel deems a serious threat.

Dean and Sam travel to a town when people are being killed by dead icons like Abraham Lincoln; two teenagers claim their friend was kidnapped by Paris Hilton.

Sam wants to rejoin Dean in the battle of the apocalypse, but Dean thinks they are better off apart; Dean wakes up five years in the future and is attacked by humans infected with a... Full summary

Sam thinks about giving up hunting; Dean and Castiel team up to search for Raphael.

In hopes of defeating Lucifer, Castiel decides to search for God; Bobby's friend, Rufus, begs for help when demons begin attacking his town.

Sam, Dean and Bobby deal with the aftermath of the devil (Mark Pellegrino) rising from hell; Chuck has stunning news for the brothers.

The fourth season concludes with Sam and Dean preparing to fight Lucifer in the apocalypse. Elsewhere, Sam and Ruby attempt to kill Lilith. ~ Tim Holland, All Movie Guide

Sam is locked inside Bobby's panic room to allow him to detox from demon blood, but Bobby wants to free him early to help fight in the anticipated apocalypse. Dean disagrees and seeks... Full summary

Castiel visits Dean in a dream and tells him he has important news. Dean and Sam set out on a search for Castiel, only to find his human vessel, Jimmy, who yearns for a normal life and... Full summary

Sam and Dean agree to meet with a 19-year-old man named Adam. Adam claims to be John Winchester's son, but they suspect that he's really a demon attempting to trap them. ~ Tim Holland,... Full summary

Sam and Dean discover that their lives as demon hunters are accurately detailed in a series of Supernatural comic books. They track down the author, who explains that he sees visions of... Full summary

Sam and Dean live normal, separate lives but they don't seem to know each other, even though they work at the same company. However, when colleagues start committing suicide, they team... Full summary

Someone is using Lucifer's sword to kill angels. Castiel and Uriel ask Dean to use the torturing skills he learned in hell to obtain information from a likely suspect. ~ Tim Holland,... Full summary

Sam and Dean visit a small town where people are cheating death because the Reapers have vanished. They journey into the spiritual world for answers and learn who is behind the Reapers'... Full summary

Sam and Dean go to a small town in Iowa where three men have beaten their wives to death; a Siren puts Sam and Dean under a spell.

Sam and Dean investigate a series of murders at their old high school. The probe leads the two to recall how Sam was the target of a bully at school, while Dean was the big man on... Full summary

A formerly famous magician living in a small town makes a deal to acquire real magical powers and pays a heavy price for it when a murder occurs. ~ Tim Holland, All Movie Guide

Sam and Dean investigate the appearance of a female ghost in an abandoned house. But their efforts are complicated when a family moves in and the son is kidnapped through the walls. ~... Full summary

Sam and Dean learn why the angels want to kill Anna. They try to save her by helping her restore a crucial part of her past, even as Alastair and his demons close in on her. ~ Tim... Full summary

Sam and Dean search for a young woman who can hear conversations between angels after Ruby tells them a powerful demon is on the prowl to find her. ~ Tim Holland, All Movie Guide

A wishing well is discovered to be the real thing when a girl's teddy bear comes to life, someone wins the lottery and a local geek gets a beautiful girlfriend. But Sam and Dean realize... Full summary

A witch sacrifices people in a small town to summon a demon who may be a key to freeing Satan. To stop her, Castiel brings in a special angel who intends to destroy the town. ~ Tim... Full summary

Several men die from fright after being infected with a mysterious illness that causes acute anxiety, which leads to total terror. Sam and Dean investigate, and Dean becomes infected.... Full summary

Several murders occur during an Oktoberfest celebration and it's learned a shape-shifting demon is responsible, and that it is taking the form of iconic movie monsters, such as a... Full summary

Sam and Dean encounter a man with a mysterious infection that transforms him into a flesh-eating monster. Sam thinks the man can be changed through reason to curb his newfound... Full summary

Dean is sent back in time and meets his parents when they first fall in love. He also encounters his grandfather, who may be hiding a secret that is key to Dean and Sam's mission. ~ Tim... Full summary

The spirits of Meg and Agent Henricksen appear and accuse Sam and Dean of failing them, as the brothers attempt to help a man haunted by the angry ghosts of children he was unable to... Full summary

In the fourth-season opener, Dean has been freed from hell and reunites with Sam and Bobby, but the three don't know how he returned. ~ Tim Holland, All Movie Guide

Sam summons Ruby for help as time begins running out for Dean. The brothers, against Ruby's advice, steal her knife and, with Bobby's help, prepare to face off against Lillith and her... Full summary

Sam and Dean investigate zombies in a small Pennsylvania town, where they find a doctor (Billy Drago) with a sinister agenda. Meanwhile, Bobby learns where Bela is hiding, so Dean... Full summary

Dean gets a mysterious phone call that appears to be from his dad, explaining how to get out of the deal, and he decides to follow the advice despite the fact that Sam doesn't believe... Full summary

Sam and Dean star in a paranormal reality show that takes them to an abandoned estate that turns into one of the most haunted places in the U.S. for one night each year. ~ Rick Toy, All... Full summary

Sam and Dean are double-crossed by Bela, who has them arrested, but when Agent Henriksen (C. Malik Whitfield) arrives at the jail to take them, he discovers they've been surrounded by... Full summary

Dean is shot and killed while investigating the disappearance of a man with Sam, who is stunned when he wakes up the next morning to find his brother alive and well. Then he realizes he... Full summary

Bobby is poisoned with a dream potion and lapses into a deadly coma, so Sam and Dean take the potion themselves to enter the dream and save him, but to do so they all must confront... Full summary

Unrequited love becomes vengeful witchcraft, which in turn leads Sam and Dean to a coven of suburban witches whose black magic is drawn from a much more sinister source. ~ Rick Toy, All... Full summary