HBO has set the premiere date for Damon Lindelof’s highly-anticipated adaptation of “Watchmen.”

The series will premiere on Sunday, Oct. 20 at 9 p.m. A week later, “Silicon Valley” will return for its sixth and final season, which will air at 10 p.m.

The series is based on Alan Moore’s acclaimed 1980s set graphic novel series. The logline from HBO is as follows: Set in an alternate history where masked vigilantes are treated as outlaws, “Watchmen” embraces the nostalgia of the original groundbreaking graphic novel of the same name, while attempting to break new ground of its own.

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Nicole Kassell directed the pilot, based from a script written by Lindelof.

Not much is known about HBO’s take on the famed comic series, except that it will not be a straight retelling of the 12-issue graphic novel series, but rather something new that takes place roughly 30 years later. “It’s canon,” Lindelof said of the events of the novel, during the Television Critics Association press tour in July. “Everything that happened in those 12 issues could not be messed with. We were married to it. There’s no rebooting happening.”

“Watchmen” stars Jeremy Irons, Regina King, Jean Smart, 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” is produced for HBO by White Rabbit in association with Warner Bros. Television, based on characters from DC.