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Sam and Dean investigate a haunting at one of the high schools they attended as teenagers.

Sam and Dean are faced with magicians delving in black magic. They investigate after several people wind up dead in ways similar to the illusions the magicians perform on stage.

Sam (Jared Padalecki) and Dean (Jenson Ackles) are stunned when the spirits of Meg (guest star Nikki Aycox) and Agent Henricksen (guest star C. Malik Whitfield) appear and accuse the Winchesters of failing them. Although rattled, the brothers must pull together to save Bobby (Jim Beaver), who is too crippled with guilt to fight off the angry ghosts of the young children he couldn’t save.

However, that shock turns to amazement after he runs into a young John Winchester (guest star Matthew Cohen) and Mary (guest star Amy Gumenick) who have just fallen in love. Dean isn’t sure why he was sent back so he begins to enjoy the time with his parents and newfound grandfather (guest star Mitch Pileggi, “The X-Files”), who may be hiding a secret that is key to Sam (Jared Padalecki) and Dean’s entire predicament.

Sam (Jared Padalekci) and Dean (Jensen Ackles) discover that Jack Montgomery (guest star Dameon Clark), a family man, is turning into a Rugaru, a creature that starts as a human but changes into a flesh-eating monster. The people who are infected don’t understand what is happening until they turn into cannibals and eat another person. Understanding what it is like to be a victim of a twisted destiny, Sam believes he can reason with Jack and convince him to control his urges.

Dean (Jensen Ackles) and Sam (Jared Padalecki) investigate several murders at Oktoberfest. The first victim was found with bite marks on her neck, much like a vampire would leave, while the second victim has wounds that look like a werewolf attack. After a mummy rises from his crypt, Dean determines that a shape-shifter demon is terrorizing the town as iconic monsters from the old Hollywood movies.

Sam and Dean investigate the mysterious deaths of several men who apparently dropped dead of fright. They visit one of the victims in the morgue, and Dean becomes infected with the illness which starts as a general anxiety, then moves on to full-blown terror that eventually stops the heart. Sam and Bobby must find the root of the disease before Dean dies and is sent back to Hell.

Sam winds up on the bad side of two angels when he exorcises a demon that was meant as a job for Dean alone.