Episode 1 | I Think I'm Gonna Like It Here

Sam is dying. Dean asks for help from the angels. Castiel tries to adjust to being human as the angels come after him.

Episode 2 | Devil May Care

Sam and Dean reveal to Kevin that they have Crowley hostage, while Abaddon returns to hunt them all down.

Episode 3 | I'm No Angel

Sam and Dean track down Castiel, while Bartholomew, a new leader of the fallen angels, tries to destroy him.

Episode 4 | Slumber Party

Sam and Dean accidentally free Dorothy, who has been trapped in the bunker for years, who seeks their help in killing the wicked witch.

Episode 5 | Dog Dean Afternoon

When the only witness to a couple of mysterious murders is a dog, Dean performs a risky spell to help him communicate with canines.

Episode 6 | Heaven Can't Wait

Dean and Castiel team up to find a Rit Zien, an angel healer, who is easing peoples' suffering by killing them. Sam and Kevin ask Crowley for help in finding a way to open the gates to Heaven.

Episode 7 | Bad Boys

Dean and Sam visit Dean's old boy's home that's now being haunted by a ghost.

Episode 8 | Rock and a Hard Place

Sheriff Mills calls Sam and Dean for help with multiple disappearances in the town. Discovering all four victims belonged to the same church chastity group, Sam and Dean decide to infiltrate by joining the group themselves.

Episode 9 | Holy Terror

The angels go to war against each other. A secret about Ezekiel is revealed.

Episode 10 | Road Trip

Dean and Castiel ask Crowley for help in finding Gadreel and getting him out of Sam's body.

Episode 11 | First Born

Sam and Castiel believe that they found a way to track Gadreel. Dean and Crowley team up to find the first blade, which is in the hands of the biblical Cain.

Episode 12 | Sharp Teeth

Sam and Dean find out that Garth has been taken in by a family of werewolves.

Episode 13 | The Purge

Sam and Dean apply for jobs at a wellness spa so they can investigate the murders of guests who have had the fat sucked out of them.

Episode 14 | Captives

Kevin's spirit returns to ask Sam and Dean to find his mother. Castiel is taken to Bartholomew.

Episode 15 | #thinman

As Dean and Sam investigate the murder of a teenage girl, they once again cross paths with the Ghostfacers.

Episode 16 | Blade Runners

Sam and Dean assist Crowley in the search for the first blade.

Episode 17 | Mother's Little Helper

Dean copes with the side effects of the Mark of Cain, as Sam investigates a series of violent murders related directly to Abaddon.

Episode 18 | Meta Fiction

When Castiel rejects Metatron's offer to join forces, a surprising plan is set in motion; Gadreel is apprehended.

Episode 19 | Alex Annie Alexis Ann

Sheriff Mills calls Sam and Dean for help when she finds a young girl running from a vampire pack.

Episode 20 | Bloodlines

Sam and Dean visit Chicago and find the city's underbelly is divided between powerful clans of monsters, including werewolves and shape-shifters.

Episode 21 | King of the Damned

Abaddon makes a deal with Crowley to stop the Winchesters and recover the first blade. Castiel tries to bring Gadreel to his side in the war against Metatron.

Episode 22 | Stairway to Heaven

Angels are committing suicide in Castiel's name. Sam and Dean try to find out why.

Episode 23 | Do You Believe in Miracles

The influence of the mark on Dean reaches new heights, as Metatron begins to reveal himself to humanity.