Episode List: Supernatural (2005-2020)

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

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

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

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

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

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.

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

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.

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

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

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.

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

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.

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

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

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

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

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

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

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

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.

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

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