'Supernatural' Season 15 Release Date, Cast, Trailer, Plot: When Does the Final Season Air?

The CW is now airing its final season of Supernatural, which is coming to an end after over 300 episodes. The Winchesters will be back to lead the cast, in a plot that sees them take on "every soul in Hell" according to the Season 15 trailer. Here's everything you need to know about the release date, cast, trailer and plot of the final episodes of Supernatural.

When does Supernatural Season 15 air?

The CW will air episodes of Supernatural Season 15 on Thursdays at 8 p.m. ET, with the premiere airing on October 10. The final season will be slightly shorter, with 20 episodes bringing the show to an end.

As with The CW's other big shows, episodes will be available on The CW app and website soon after they air, while the season will be available on Netflix just over a week after the final episode airs, which is expected to be in April 2020. Netflix is also the streaming home of the previous 14 seasons of Supernatural for those who want to catch up on the show—or remain in denial that it is ending.

supernatural season 15 release date
Sam Winchester (Jared Padalecki) fights a horde of zombies in "Supernatural" Season 15. The CW

Who is in the Cast of Supernatural Season 15?

For the final season, a number of familiar faces are expected to return and fight Sam Winchester (played by Jared Padalecki), his brother Dean Winchester (Jensen Ackles) and Castiel (Misha Collins).

Among the characters confirmed for a comeback are Adam Winchester (Jake Abel) and Jack Kline (Alexander Calvert), while according to Digital Spy there is some speculation that Kathryn Newton will return as Claire Novak.

Though there have been no confirmations, figures like John Winchester (Jeffrey Dean Morgan) and wife Mary (Samantha Smith) are expected to be seen in the afterlife, while Dean's one true love Lisa Braeden (Cindy Simpson) may also return for one more time.

supernatural season 15 cw
Promo poster for "Supernatural" Season 15. The CW

What Will Happen in Supernatural Season 15?

The official CW plot synopsis for the season reads: "The epic journey of the Winchester brothers comes to a close as Supernatural enters its final season. Sam and Dean and the angel Castiel have conquered monsters, demons, Heaven and Hell, and in the show's 14th season, the Winchesters grappled with the Archangel Michael possessing Dean. In a valiant act, Sam and Dean's surrogate son Jack destroyed his soul to redeem his adoptive father. But this proved to be a fatal error, leading to the accidental death of Mary Winchester.

"Now, heading into their 15th season, Sam and Dean find themselves facing a threat beyond anything they've ever grappled with... anything they've ever imagined: God himself."

As for how the show will end, one of the show's stars has been sharing his convincing theory. Misha Collins told TV Guide: "If they die—I don't know, I don't think it's written yet—but if they do die, I want them to die going out doing something they love that will make the world a better place.

"Part of me thinks that's the only way to end Supernatural. Because if the boys were alive, they'd be hunting, and if they're hunting, I want to see them hunting."

supernatural season 15 cast
Adam Winchester (Jake Abel) will return to the "Supernatural" Season 15 cast The CW

Is There a Trailer for Supernatural Season 15?

The promo for the final season, released in September by The CW, strikes a suitably apocalyptic note. "Welcome to the end," the Winchesters are told as the implications of last season's finale hit home.

The trailer then sees a figure from their past return from the dead, much to the Winchesters' confusion. "If she's back," Dean says, "they'd all be back," hinting at the return of some of the series' greatest foes.

"It's you and me against all the souls in Hell. I like those odds. Let's get to work." the brothers then say, preparing Supernatural fans for the epic battle of Season 15.

Supernatural Season 15 airs Thursdays at 8 p.m. ET / 7 p.m. CT on The CW.