On Supernatural Season 13 Episode 12, Sam and Dean need help from a powerful ally after sister witches Jamie and Jenny steal a powerful book of spells.

On Supernatural Season 13 Episode 11, when Donna’s niece, Wendy, is kidnapped by a man who sells human parts to monsters, she goes to Sam and Dean for help.

On Supernatural Season 13 Episode 10, when Sam and Dean go missing, Jody Mills calls upon Claire, and others, to help her find the guys before it’s too late.

On Supernatural Season 13 Episode 9, Jack enlists the help of a dream walker to find a way to save Mary. Read on to find out if he succeeds.

On Supernatural Season 13 Episode 8, Sam and Dean agree to steal a mysterious trunk belonging to a demon in exchange for a spell to track down Jack.

On Supernatural Season 13 Episode 6, Castiel, joins Jack, along with Sam and Dean as they head off to a sleepy old western town to investigate a murder.

On Supernatural Season 13 Episode 5, Sam and Dean get assistance from Billie when they investigate a case involving the ghost of a demented doctor.

On Supernatural Season 13 Episode 4, Sam, Dean and Jack investigate the mystery surrounding the murders of grief counselor Mia Vallens patients.

On Supernatural Season 13 Episode 3, Missori enlists the help of Dean and Jody to protect her granddaughter, Patience, from a wraith with a taste for psychics.

On Supernatural Season 13 Episode 2, an unexpected visit from Donatello alerts Sam and Dean that Jack needs more protection than the Winchesters can provide.