The first official teaser for Iron Man director Jon Favreau’s adaptation of Scott Mitchell Rosenberg’s graphic novel Cowboys & Aliens rode into town this morning. Set in the mid 19th century, the sci-fi actioner follows gunslinger Jake Lonergan (Daniel Craig), Ella Verity (Olivia Wilde), and Colonel Dolarhyde (Harrison Ford) as they set out to stop an alien race from enslaving humankind.

Peep the trailer:

The film’s official synopsis reads:

1873. Arizona Territory. A stranger (Craig) with no memory of his past stumbles into the hard desert town of Absolution. The only hint to his history is a mysterious shackle that encircles one wrist. What he discovers is that the people of Absolution don’t welcome strangers, and nobody makes a move on its streets unless ordered to do so by the iron-fisted Colonel Dolarhyde (Ford). It’s a town that lives in fear.

But Absolution is about to experience fear it can scarcely comprehend as the desolate city is attacked by marauders from the sky. Screaming down with breathtaking velocity and blinding lights to abduct the helpless one by one, these monsters challenge everything the residents have ever known.

Now, the stranger they rejected is their only hope for salvation. As this gunslinger slowly starts to remember who he is and where he’s been, he realizes he holds a secret that could give the town a fighting chance against the alien force. With the help of the elusive traveler Ella (Olivia Wilde), he pulls together a posse comprised of former opponents—townsfolk, Dolarhyde and his boys, outlaws and Apache warriors—all in danger of annihilation. United against a common enemy, they will prepare for an epic showdown for survival.

Cowboys & Aliens costars Sam Rockwell (Iron Man 2), Walton Goggins (Predators), Clancy Brown (“LOST”), Abigail Spencer (Haunting in Georgia), Keith Carradine (“Dexter”), Paul Dano (Taking Lives),  Ana de la Reguera (Nacho Libre), and Adam Beach (Flags of Our Fathers).

The film’s script was written by “LOST” co-creator Damon Lindelof with go-to collaborators Alex Kurtzman and Roberto Orci. Steven Spielberg, Ron Howard and Brian Grazer serve as producers.

Cowboys and Indians will be in theaters on July 29, 2011.