PJ Pesce directed this episode written by Robbie Thompson (#1018).ДEAN AND ROWENA FACE OFF AGAINST EACH OTHER - Sam (Jared Padalecki) and Castiel (Misha Collins) follow up on a lead about the Mark of Cain.Дean (Jensen Ackles) and Rowena (guest star Ruth Connell) meet. The Winchesters race to her after she tells them sheвЂ™s been shot by a man named Jacob Styne (guest star Jeff Branson) who says the book belongs to his family and he wonвЂ™t rest until he gets it back.Д¬astiel (Misha Collins) and Metatron (guest star Curtis Armstrong) take a road trip to find CastielвЂ™s grace but they hit a couple road bumps along the way. Stefan Pleszczynski directed this episode written by Robert Berens (#1019).ДЇELICIA DAY RETURNS AS CHARLIE - Charlie (guest star Felicia Day) calls Sam (Jared Padalecki) and Dean (Jensen Ackles) to tell them she found the Book of the Dead which could help remove the Mark of Cain. When Sam opens the box, he puts both his and DeanвЂ™s life in danger. However, what heвЂ™s not prepared for is the deadly alarm system Magnus set up on the box. Steve Boyum directed this episode written by Robbie Thompson (#1020).Д¬AN DEAN SAVE SAM? - Sam (Jared Padalecki) learns that former Men of Letters, Magnus, once built a magical box and Sam sets out to find it in the hopes it can cure Dean (Jensen Ackles) of the Mark of Cain. However, when they find out what took Amelia, they realize there is a chance Claire may not get her happy ending. Robert Singer directed this episode written by Eugenie Ross-Leming & Brad Buckner (#1021).Д¬LAIRE NOVAK RETURNS - When Claire Novak (guest star Kathryn Love Newton) gets a lead on her mother, Amelia (guest star Leisha Hailey), who has been missing for years, Castiel (Misha Collins) asks Sam (Jared Padalecki) and Dean (Jensen Ackles) to help her.Д¬astiel feels guilty for what he did to the Novak family and wants to make amends by reuniting Claire with her mom. Meanwhile, Castiel (Misha Collins) acts as referee when Charlie (guest star Felicia Day) and Rowena (guest star Ruth Connell) are forced to work together on the Book of the Damned.Д¬rowley (Mark Sheppard) discovers his mother is missing and knows sheвЂ™s up to something so he turns to an old enemy for help. THE WINCHESTERS MEET THE STYNES - Dean (Jensen Ackles) and Sam (Jared Padalecki) investigate a bizarre murder and realize the killer bears the same tattoo as those from the Styne family.Д®ldon Styne (guest star David Hoflin) attacks Dean and a brutal fight ensues. Wright directed this episode written by Andrew Dabb (#1021).

Sam (Jared Padalecki) tries to come to terms with his decision.

Phil Sgriccia directed this episode written by Jeremy Carver (#1022).ДEAN IS ON A RAMPAGE - When it comes to the Stynes, Dean (Jensen Ackles) decides to take matters into his own hands. Meanwhile, Crowley (Mark Sheppard) and Rowena (guest star Ruth Connell) face off and Castiel (Misha Collins) gets caught in the middle. SUPERNATURAL SEASON FINALE - Dean (Jensen Ackles) makes a shocking decision regarding the Mark of Cain that would change not only his life, but SamвЂ™s (Jared Padalecki) too.

Supernatural season 10 episode 16