Supernatural Season 6 Episode 7 - Dean believes his grandfather is harboring a secret and reluctantly goes on a hunt with him, which goes horribly awry.
Supernatural Season 6 Episode 8 - "All Dogs Go to Heaven" - Dean and Sam investigate what seems to be a werewolf killing but turns out to be a skinwalker posing as a family dog who is taking revenge on his owner's enemies. After capturing the dog, he turns human and tells Sam and Dean that an Alpha skinwalker has created many sleeper cells that will rise on his command and kill their families. The only way to stop the mass murders is to find and kill the Alpha.
Supernatural Season 6 Episode 9 - "Clap Your Hands If You Believe" - While investigating crop circles, Dean is abducted by the creatures responsible, only to discover that they are fairies. They release him, but Dean soon discovers that the fairies, which only he can see, aren't letting go so easily.
Supernatural Season 6 Episode 10 - Meg kidnaps Sam and Dean and tries to force them to tell her where Crowley is hiding. Sam makes her a deal - they will help her find Crowley if she promises to torture him for information about how to get Sam's soul back. Castiel joins the fight but finds it difficult to work with Meg.
Supernatural Season6 Episode 11 - Appointment in Samarra. - Dean seeks out Death to help get Sam's soul back. Death tells Dean he will help Sam if Dean will agree to act as Death for 24 hours. Meanwhile, Sam decides he doesn't want his soul back and asks Balthazar for a protective spell to keep his soul out of his body. Balthazar tells Sam he needs the blood of his father for the spell to work and since John Winchester is dead, Sam decides Bobby is the next best thing.
Supernatural Season 6 Episode 12 - Dean and Bobby anxiously wait for Sam to wake up to see if Death was able to restore his soul without causing Sam to lose his mind. Meanwhile, Dean and Bobby investigate a disappearance of virgins and discover dragons are behind the kidnappings. Bobby sends Dean to a doctor who owns the only weapon in the world that can slay a dragon, but Dean must prove himself worthy enough to take it.
Supernatural Season 6 Episode 13 - When Sam starts to have flashbacks from his year as a soulless hunter before he contacted Dean, the brothers receive a message leading them to a small town where Sam spent time working on a case with their grandfather, Samuel.
Supernatural Season 6 Episode 14 - Ben calls Dean and tells him Lisa is in trouble. Dean leaves Sam to investigate a case alone and rushes home to rescue Lisa, however, he's not prepared for what meets him at the door. Meanwhile, Sam discovers the men that were murdered were all a part of a cruel practical joke played on a female co-worker who went missing.