Over the past few years, bizarre drowning accidents have been happening in a certain lake in Louisiana. They say the victims were attacked by a monster. Sam and Dean learn that, also in the past few years, the farming has been poor due to crop failure and a great number of the bees have died. They think that this is the doing of a demon and start investigating around the lake where the drowning accidents occurred. They find clues that show that it was the doing of a demon, but...

A series of bizarre murders occur in Colorado and a hunter named Daniel Elkins is among those killed. Sam and Dean think that it was done by a vampire and head out. Once there, much to their surprise, they find their father, John. Needless to say, the brothers are very happy and, following John's instructions, they set out to find the Colt, a gun stolen by the vampire that killed Elkins. Though Sam can't help but complain about the fact that John won't explain anything to them.

After Sam has a vision, he, Dean and John get into the car and set out. They finally have a chance to settle things with their old enemy, the "yellow eyed demon". However, John falls into a trap set by the demons and is captured. Can Sam and Dean save John? And will they be able to defeat their enemy, the "yellow eyed demon"?

The Winchester family suffered serious injuries during the fight with the demon. Sam and John regain consciousness, but Dean stays in a coma. Dean, whose soul was separated from his body, wanders around the hospital till he meets a Reaper. Dean is uncertain whether to die or stay in this world as a ghost and become the same as the demons they hunt. Meanwhile, Sam and John decide to take certain actions in order to save him.

Dean is tormented by the sin he committed and loses his reason to fight. When he can't take the suffering anymore, Missouri pays a visit and hands him a photo which awakens old memories inside him. 15 years ago, Ryle, a teacher at the school Sam and Dean were attending, became a mother like figure for the brothers and a member of the Winchester family. However, Dean remembers their mother, Mary, and can't idly accept Ryle. Ryle had a secret that even John didn't notice.

Leaving the words, "I'll be killed by the black dog!" behind, an architect jumps off his own mansion and dies. Sam and Dean think that it's possible that it's the work of their old demon enemy and start investigating the truth. They learn that 10 years ago, other geniuses died in similar ways. Sam and Dean think that the "Crossroads Demon", who grants people's wishes in exchange for their lives, is behind the case. In order to save the next victim, they take a big gamble and risk their own lives.

Jake, serving as a soldier in Afghanistan, lost his mother 22 years ago in a fire, just like Sam. The "Yellow Eyed Demon" follows him and tries to urge him to unleash his hidden power, but he always refuses to do it. While leading his troops, they are attacked by the enemy and on the verge of destruction. In order to save his friends who are falling in front of his eyes, Jake makes a decision. In the meantime, Sam and Dean visit Jake's hometown, Saint Louis.

Dean wakes up with an unknown woman next to him who turns out to be his wife. What's more, his mother Mary, who is supposed to be dead, is alive and Sam is married to Jessica, who was supposedly killed. Dean and the others gather together to celebrate his mother's birthday. Even though Dean was perplexed by this everyday life he started feeling happy, til he realized the truth behind that world and then...

When demon activity starts becoming more and more active, Sam suddenly disappears in front of Dean's eyes. When Sam comes to, he learns that Lily, Jake and other people who are holding special powers have been gathered together in a ruined ghost town. There, Sam and the others learn about their cruel fate and every detail about the dreadful plan imposed on them by the Yellow Eyed Demon.

After the fight between Jake and Sam, Dean has to make the ultimate sacrifice for his brother. Meanwhile the Yellow-Eyed Demon has his new servant and plans to unleash the hordes of Hell.

Over the past few years, bizarre drowning accidents have been happening in a certain lake in Louisiana. They say the victims were attacked by a monster. Sam and Dean learn that, also in the past few years, the farming has been poor due to crop failure and a great number of the bees have died. They think that this is the doing of a demon and start investigating around the lake where the drowning accidents occurred. They find clues that show that it was the doing of a demon, but...

A series of bizarre murders occur in Colorado and a hunter named Daniel Elkins is among those killed. Sam and Dean think that it was done by a vampire and head out. Once there, much to their surprise, they find their father, John. Needless to say, the brothers are very happy and, following John's instructions, they set out to find the Colt, a gun stolen by the vampire that killed Elkins. Though Sam can't help but complain about the fact that John won't explain anything to them.

After Sam has a vision, he, Dean and John get into the car and set out. They finally have a chance to settle things with their old enemy, the "yellow eyed demon". However, John falls into a trap set by the demons and is captured. Can Sam and Dean save John? And will they be able to defeat their enemy, the "yellow eyed demon"?

The Winchester family suffered serious injuries during the fight with the demon. Sam and John regain consciousness, but Dean stays in a coma. Dean, whose soul was separated from his body, wanders around the hospital till he meets a Reaper. Dean is uncertain whether to die or stay in this world as a ghost and become the same as the demons they hunt. Meanwhile, Sam and John decide to take certain actions in order to save him.

Dean is tormented by the sin he committed and loses his reason to fight. When he can't take the suffering anymore, Missouri pays a visit and hands him a photo which awakens old memories inside him. 15 years ago, Ryle, a teacher at the school Sam and Dean were attending, became a mother like figure for the brothers and a member of the Winchester family. However, Dean remembers their mother, Mary, and can't idly accept Ryle. Ryle had a secret that even John didn't notice.

Leaving the words, "I'll be killed by the black dog!" behind, an architect jumps off his own mansion and dies. Sam and Dean think that it's possible that it's the work of their old demon enemy and start investigating the truth. They learn that 10 years ago, other geniuses died in similar ways. Sam and Dean think that the "Crossroads Demon", who grants people's wishes in exchange for their lives, is behind the case. In order to save the next victim, they take a big gamble and risk their own lives.

Jake, serving as a soldier in Afghanistan, lost his mother 22 years ago in a fire, just like Sam. The "Yellow Eyed Demon" follows him and tries to urge him to unleash his hidden power, but he always refuses to do it. While leading his troops, they are attacked by the enemy and on the verge of destruction. In order to save his friends who are falling in front of his eyes, Jake makes a decision. In the meantime, Sam and Dean visit Jake's hometown, Saint Louis.

Dean wakes up with an unknown woman next to him who turns out to be his wife. What's more, his mother Mary, who is supposed to be dead, is alive and Sam is married to Jessica, who was supposedly killed. Dean and the others gather together to celebrate his mother's birthday. Even though Dean was perplexed by this everyday life he started feeling happy, til he realized the truth behind that world and then...

When demon activity starts becoming more and more active, Sam suddenly disappears in front of Dean's eyes. When Sam comes to, he learns that Lily, Jake and other people who are holding special powers have been gathered together in a ruined ghost town. There, Sam and the others learn about their cruel fate and every detail about the dreadful plan imposed on them by the Yellow Eyed Demon.

After the fight between Jake and Sam, Dean has to make the ultimate sacrifice for his brother. Meanwhile the Yellow-Eyed Demon has his new servant and plans to unleash the hordes of Hell.