Dean returns from Purgatory, one year after the fight with the Leviathans. After reuniting with Sam, they find out that Kevin escaped Crowley with another Word of God that may hold the key to closing the gates of Hell forever.

After saving Kevin's mother from demons, Sam, Dean, and Kevin go after the Word of God which is being auctioned off by Plutus, the god of greed.

While trying to track down Kevin, Sam and Dean get sidetracked by a series of murders where the victims have gotten their hearts ripped out.

Dean assists the vampire, Benny, who helped him escape from Purgatory. together they go after the nest led by the vampire that bit Benny. Sam thinks back to his life before Dean returned.

Sam and Dean team up with Garth, who has taken over Bobby's job, as they hunt down a Specter that's possessing innocent people who have a grudge against someone.

Crowley has kidnapped Kevin and the rest of the prophets that are able to read the Word of God. Castiel mysteriously returns from Purgatory and helps Sam and Dean rescue Kevin.

Castiel decides to become a hunter, like Sam and Dean. But his first day on the job is a doozy when they investigate a series of murders caused by old cartoon gags. Meanwhile, Sam thinks back to his first time meeting Amelia's father.

Benny seems to be attacking innocent people and only Dean believes he's innocent.

Dean and Castiel try to rescue Samandriel from Crowley. Sam tries to decide whether or not he should continue hunting or be with Amelia.

When two LARPers turn up dead, Sam and Dean investigate the fictional world of Moondoor, where they find a familiar face.

Sam and Dean's grandfather, Henry Winchester, arrives by time travel, claiming that he has something to protect from an Abaddon that is hot on his trail.

Sam and Dean go up against a group of Nazi necromancers.

Kevin has found out that in order to close the gates of Hell, the person needs to accomplish three tasks. The first, is to kill a Hellhound.

James Frampton, an old friend of Sam and Dean, has become a witch. Now he's supposedly killing innocent people.

Sam and Dean come across a mysterious man that dies once every day.

Sam and Dean hunt down the angel tablet with assistance from Castiel and Meg.

A hunter has been training Krissy and other kids to be hunters.

The second task is to rescue an innocent soul from Hell and deliver it to Heaven.

While searching for Kevin, again, Charlie joins up with Sam and Dean as they track down a creature that's been liquefying its victims. Plus, a new side of Charlie is revealed.

Sam and Dean search for the Word's author, Metatron. Castiel tries to protect the angel tablet. Kevin tries to solve the third trial under Crowley's supervision.

Sam and Dean try to figure out how to cure a demon. Crowley starts killing victims that Sam and Dean have saved from previous jobs. Castiel and Metatron begin the trials to close the gates to Heaven.

Sam and Dean capture Crowley to finish the trials and close the gates of Hell. Castiel and Metatron continue the trials to close the gates of Heaven. Sam is left with a huge decision.

A reaction to the Gag reel for season 8 of Supernatural.