'Supernatural' Season 10 Spoilers: Sam And Dean Winchester Watch Musical Version Of 'Carry On Wayward Son' In 'Fan Fiction' Promo Video

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Additional promo videos for "Supernatural" Season 10, episode 5 titled "Fan Fiction" has been released to tease the fans what will go down in the 200th milestone episode of the CW TV series. The Winchester brothers will be busy working on a teacher-gone-missing case that leads them to a musical play based on their lives.

In the first promo video, Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) simply takes a moment to listen to the students' musical version of "Carry On Wayward Son" in their play based on "Supernatural." The second promo video teases how the Winchester brothers ended up conducting their investigation at the school.

The sneak peek video begins with Dean fixing his "Baby" Impala. Then, Sam steps out of their motel room to see that his brother is up early and already busy. "Hey, how long have you been up?" Sam asks.

"Long enough to find us a case," Dean responds. Sam suggests that Dean's behavior could mean he is already feeling normal after his temporary transformation into a demon.

Dean agrees and then shows Sam the newspaper telling about a teacher from an all-girls school that disappeared. Sam argues that there is nothing in the report that suggests they should go after the case but Dean explains that going out on a hunt is currently the only normal thing that he knows.

"We got work to do," Dean declared before the video clip ended. Watch the "Supernatual" Season 10 "Fan Fiction" promo videos below. The official episode synopsis in a Hypable report reads: "SUPERNATURAL CELEBRATES ITS 200TH EPISODE - When Sam (Jared Padalecki) and Dean (Jensen Ackles) investigate the disappearance of a teacher, they are stunned to see the school is putting on a musical based on their lives. Familiar faces abound in this milestone episode. Phil Sgriccia directed this episode written by Robbie Thompson (#1005)."

According to a Variety report, writer Robbie Thompson revealed that he pitched hard for the musical theme to happen in the 200th episode of "Supernatural" when the job was given to him. "I've seen most of the episodes a handful of times, but I just watched it all in a row," Thompson shared.

The writer added that the top inspiration for his work on the 200th episode is the show itself because the fans have watched the "Supernatural" characters, like Sam, Dean, Castiel (Misha Collins) and Crowley (Mark Sheppard) grow up in the show. Click HERE to see the promo stills from the school's musical play on Sam and Dean's lives.

"Supernatural" Season 10, episode 5 titled "Fan Fiction" is scheduled to air on Tuesday night, Nov. 11 at 9 p.m. ET on the CW Network.