The brothers investigate the death of a man who committed suicide in a church. However, Sam is forced to team up with an unexpected ally when Dean disappears with a female demon who is interested in him personally.

In this Christmas-themed episode, Sam and Dean follow the trail of a creature that abducts its victims by using their chimneys. Dean would like to celebrate Christmas like they used to when they were children, but Sam isn't exactly feeling the Christmas spirit.

Sam and Dean search for a Crocotta that uses the phone and computer as a means to communicate with people. Its goal is to get people to commit suicide and take their soul. Dean gets some news from an unlikely source about a demon holding the contract to his soul.

Back to the future, Castiel sends Dean to 1973 Lawrence, Kansas, where he meets a nice young couple named John and Mary Winchester. Dean's parents. And Mary has a secret.

In a black-and-white world reminiscent of classic horror flicks, the brothers tangle with a vampire, a werewolf and a mummy who are thinning the crowds at a quaint Oktoberfest.

Dad, Mom, two kids and a dog. An all-American family doesn't stand a ghost of a chance against the bloodthirsty force that turns their new home-sweet-home into a haunted house.

Reapers take a break from work, and that means no one can die. But the escorts to the next world aren't off getting some R&R, unless you call being held hostage by a demon restful and relaxing.

The body Castiel walks around in isn't his. Instead, it belongs to a regular guy named Jimmy who wants his body - and his life - back. He gets the body. But the life may be a different story.

Sam decides to stop hunting but has a hard time after he receives a surprise visit. Dean and Castiel try to find the Archangel Raphael in their bid to stop the Apocalypse.

When Sam and Dean find themselves living their lives on what appear to be TV shows, it makes for a whole new style of reality television and they wonder if the Trickster is to blame. From a sitcom to a soapy hospital drama to a Japanese game show to a crime procedural, each new experience they encounter is more bizarre than the next and they want out. But is the Trickster really the mastermind behind the madness?

Sam and Dean investigate Bobby's home town where the dead are rising from the grave but instead of attacking humans, they are happily reuniting with their families. The brothers turn to Bobby for help but he tells them not to worry about it and to leave town. Suspicious, Dean investigates and comes face to face with Bobby's dead wife, who has no memory of what happened to her. Once the zombies start turning evil, the boys tell Bobby he has to kill his wife but he refuses.

Dean begins to think the only way to stop Lucifer is to say yes to Michael, but the angels decide they don't need him anymore. Dean, Sam, and Castiel are horrified at the angels' new game plan and take on Zachariah to prevent an all out war on Earth. Meanwhile, a familiar face returns.

One Year Later, and Dean’s escaped from Purgatory, though Castiel is nowhere to be found. However, Dean isn’t alone. He’s returned with a mysterious comrade-in-arms whose reason for escape is perhaps more than Dean bargained for. Meanwhile, Sam finds himself reconciling the life he discovered while Dean was gone with Dean’s sudden reappearance.

With Crowley poised to undo all the good they’ve ever done as hunters, Sam and Dean find themselves cornered. But with Kevin's help, the Winchesters ready themselves for one last play against the King of Hell. Metatron initiates a plan with Castiel to take on Naomi and the bureaucracy of Heaven.

With Sam's life on the knife-edge, Dean appeals to the fallen angels for help. Unfortunately, most of them only see Dean as a means to get to Castiel and exact vengeance on the one who caused them to Fall.

After attacking Gadreel, Dean leaves with Crowley to track down Metatron and kill him. Meanwhile, Gadreel takes Castiel into Heaven to try and break Metatron's connection to the angel tablet.

Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his fading grace.

Dean makes a shocking decision regarding the Mark of Cain that would change not only his life, but Sam’s too. Meanwhile, Crowley and Rowena face off and Castiel gets caught in the middle.

Picking up where the finale left off, Sam and Dean must deal with the Darkness that has been unleashed. Castiel deals with the effects of Rowena’s spell and recalls his brutal battle with Crowley.