Season 13 begins exactly where we left off, with Sam (Jared Padalecki) and Dean (Jensen Ackles) left to pick up the pieces after the loss of their mother, the demise of Crowley (Mark Sheppard) and the heartbreaking death of Castiel (Misha Collins). The birth of Jack (Alexander Calvert) leaves the Winchester brothers with differing opinions on how to deal with a Nephilim. After being dragged into the breach, Mary (guest star Samantha Smith) must learn to survive Lucifer (Mark Pellegrino) and an apocalyptic world.

Sam and Dean discover what Jack is capable of with his powers.

A wraith kills her friend and Missouri enlists the help of Dean and Jody to protect her granddaughter, Patience, and could be next on the wraith's hit list. Sam continues to work with Jack to control his powers.

When multiple patients of grief counselor Mia Vallens turn up dead, Dean, Sam and Jack investigate the mystery surrounding the murders and, each inadvertently, are forced to deal with unresolved grief of their own.

Sam and Dean work on a case involving the ghost of a demented doctor; they get assistance from an unexpected source; Castiel finds his way back to the Winchesters.

Castiel is reunited with Jack and together with Sam and Dean, they head to a sleepy old western town to investigate a murder. Dean gets to live out his boyhood fantasy when he comes face to face with a famous, gun-slinging outlaw.

As Dean and Sam continue their search for Jack, they stumble across a familiar foe; Lucifer manages to escape Michael's grasp and finds and unlikely and mostly unwilling ally.

The Winchesters agree to steal a trunk belonging to a demon in exchange for a spell they can use to find Jack.

When Dean and Sam go missing Jody Mills calls Claire Novak and tells her to come home they need to find the Winchesters. As they search for Kaia the dreamcatcher who opened the rift Jody is worried about Patience's vision.

Donna calls Dean and Sam for help after her niece Wendy goes missing. They find out she was kidnapped by a man who sells human parts to monsters in online auctions and race to rescue her.

Dean falls victim to a couple of witches, sisters Jamie and Jennie Plum who manage to steal a powerful book of spells from the Winchesters. When Dean and Sam go after the book, they get help from a powerful and surprising ally when Rowena, back from the dead, intervenes to assist them. Written by CK594

Devil's Bargain Dean, Castiel and Sam search for Lucifer who, meanwhile, strikes an unlikely deal with a local faith healer named Sister Jo. Asmodeus gets closer to finding Jack.

Jack and Mary manage to escape Michael's clutches and end up finding an ally in apocalyptic world Bobby Singer. Meanwhile, Sam, Dean and Castiel continue to search for a way to open a breach, not realizing that one of their own may be working against them and costing them precious time. Written by Emily Reddon

Sam and Dean are close to collecting everything they need to open a rift into the Apocalyptic World and possibly rescuing Mary (guest star Samantha Smith) and Jack. The one missing ingredient leads the Winchesters to a black market for religious relics where everything is not always as it seems. Written by Emily Reddom

Sam, Dean and Castiel are transported into the animated world of Scooby Doo where they join forces with the Scooby gang to solve a ghostly mystery.

Sam and Dean continue to collect the pieces necessary to open a rift to the other world in order to save their family. Their latest quest leads them to a Men of Letters bunker from the 1920s and a hungry God from another dimension. Meanwhile, Ketch makes a shocking decision about Gabriel after an unruly encounter with Asmodeus.

Lucifer rules over heaven but things aren't going exactly as planned, exasperating his first lady, Jo. Sam and Castiel are perplexed by the return of Gabriel. Meanwhile, Dean gets one step closer to finding Mary and Jack.

Sam and Dean must stop Rowena, who is on a deadly mission. Meanwhile, Castiel looks to heaven to recruit angels for an impending invasion but is shocked by not only what he finds, but who.

Gabriel (guest star Richard Speight, Jr.) is back and drags Sam (Jared Padalecki) and Dean (Jensen Ackles) into his plot for revenge on the demigods who sold him to Asmodeus. Meanwhile, Jack's (Alexander Calvert) inflating confidence leads to reckless decisions that could put others in harm's way. Written by Emily Reddom

Sam, Dean, Castiel and Gabriel must work together if they have any hope of bringing Mary and Jack home. Meanwhile, Rowena's encounter with Lucifer may alter the outcome of the journey for one of our heroes.

Sam and Dean devise a plan that will save innocent lives. Meanwhile, Jack continues to wrestle with the consequences of his decisions.

Our heroes, Sam and Dean Winchester, continue to be tested in the battle between good and evil, but one impulsive decision could alter the lives of one of the brothers forever.