The popular American television series 'Supernatural' featuring the psychic-hunter brothers Dean and Sam will return for a tenth season on Tuesday night, Oct. 7, at 9/8c on The CW Network.

The premiere episode of 'Supernatural' Season 10 will mark the 200th episode of the entire 'Supernatural' series. In all likelihood, this episode will be a musical, featuring both original as well as cover songs. However, it is still not certain whether the actors playing the Winchesters, Jared Palacki (Sam) and Jensen Ackles (Dean) will actually be singing in the musical episode.

In the Season 9 finale, viewers saw Dean transforming into a demon owing to the influence of the Mark of Cain. This happened after Dean was fatally wounded and dies from his wounds following his fight with the angel Metatron.

Following the death of Dean, Sam makes an effort to call for Crowley to make a deal and resurrect him, but Crowley has visited Dean by now and discloses that the Mark of Cain won't let go of him. Therefore, he converts into a demon.

As the Season 9 finale ended with such suspense, it has left fans at the edge of their seats, and now they eagerly want to know what happens next.

After Dean transforms into a demon, Crowley finally has a weapon which he can use against Sam. On the other hand Sam, who is unable to destroy his brother and does not know that Crowley is behind this, will not be able to strike back until Episode 3 in Season 10. At that time, he discovers that Crowley is behind all of this and gets mad at him, not Dean.

Palacki, who portrays the character of Sam, told E! Online that initially his character was not aware of Dean's demon status and starts hating Crowley after discovering it.

Palacki told the website, "He doesn't know that he's a demon at the beginning of Season 10. But when he finds out his brother isn't just missing, he's a demon, and it doesn't [tick] him off. He doesn't think Dean did it on purpose or anything. He gets [ticked] off at Crowley instead."

Moreover, it is also improbable that they will be able to kill the King of Hell in 'Supernatural' Season 10. In addition, it will appear that Dean is actually enjoying being a demon, after his unpleasant experiences in the earlier seasons.

The episode can be watched online by clicking here.