HBO has released the first full-length trailer for its upcoming superhero series, Watchmen.

Based on the 1986 DC graphic novel of the same name, the small-screen adaptation comes courtesy of Damon Lindelof (The Leftovers), who has promised to stay true to the original source by Alan Moore and Dave Gibbons. But Lindelof did say, however, there will be "remixes" in store.

"We have no desire to ‘adapt’ the twelve issues Mr. Moore and Mr. Gibbons created thirty years ago," the executive producer wrote in a message posted on Instagram. "Those issues are sacred ground and they will not be retread nor recreated nor reproduced nor rebooted, They will, however, be remixed."

Watchmen is set in an alternative reality in which a group of crime-fighters are treated as outlaws. 

"You know how you can tell the difference between a masked cop and a vigilante?" FBI Agent Blake (Jean Smart) asks. "Me, neither."

Per the show's synopsis: "This drama series embraces the nostalgia of the original groundbreaking graphic novel of the same name while attempting to break new ground of its own."

Watchmen, set to premiere this October, will also star Regina King, Jeremy Irons, Don Johnson, Tim Blake Nelson, Louis Gossett Jr., Yahya Abdul-Mateen II, Adelaide Clemens, Andrew Howard, Tom Mison, Frances Fisher, Jacob Ming-Trent, Sara Vickers, Dylan Schombing, Lily Rose Smith, and Adelynn Spoon. Watchmen will feature a mix of new characters as well as those from the original Watchmen novel, such as Adrian "Ozymandias" Veidt and Rorschach.

You can check out the preview above.