The Justice League comes together in the action-packed first trailer for the Warner Bros. film.

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Blending footage previously glimpsed in July in the Comic-Con International sizzle reel with new scenes, the trailer for director Zack Snyder's film is part premise, part roll call, with Ben Affleck's Bruce Wayne and Gal Gadot's Diana Prince assembling a team to face an impending attack.

Although there's some disagreement between the two as to whether the threat is coming or already here, DC Comics will recognize is as originating on Apokolips, as glimpses of a Mother Box and Parademons confirm.

In addition to the core Justice League, the trailer also provides looks at Amy Adams as Lois Lane, Amber Heard as Mera, J.K. Simmons as Commissioner Gordon, and Billy Crudup as Barry Allen's father Henry. Noticeably absent, once again, is Henry Cavill as Superman.

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Fueled by his restored faith in humanity and inspired by Superman’s selfless act, Bruce Wayne enlists the help of his newfound ally Diana Prince to face an even greater enemy in director Zack Snyder’s “Justice League.” Together, Batman and Wonder Woman work quickly to find and recruit a team of metahumans to stand against this newly awakened threat. But despite the formation of this unprecedented league of heroes — Batman, Wonder Woman, Aquaman, Cyborg and The Flash — it may already be too late to save the planet from an assault of catastrophic proportions.

Arriving Nov. 17, “Justice League” stars Ben Affleck as Batman, Henry Cavill as Superman, Amy Adams as Lois Lane, Gal Gadot as Wonder Woman, Jason Momoa as Aquaman, Ezra Miller as The Flash, Ray Fisher as Cyborg, Willem Dafoe as Vulko, Jesse Eisenberg as Lex Luthor, Jeremy Irons Alfred Pennyworth, Diane Lane as Martha Kent, Connie Nielsen Queen Hippolyta and J. K. Simmons as Commissioner Gordon.