Do yourself a favor and lock the door — because "Fargo" season 2 is just around the corner.

FX released the first teaser trailer for the drama, and it looks as foreboding and dark as the terrific first season was. This time, the '70s is as much of a character as Patrick Wilson, Kirsten Dunst, and Ted Danson. We're sure to see plenty of crazy hairstyles and hear some awful slang.

Watch the trailer.

Season 2 is set in 1979 and focuses on the mysterious investigation in Sioux Falls that was repeatedly referenced in the first season. Here's the official synopsis from FX:

The all new "true crime" case of Fargo's new chapter travels back to 1979 in Sioux Falls, South Dakota and Luverne, Minnesota, where a young State Police Officer "Lou Solverson" (Patrick Wilson), recently back from Vietnam, investigates a case involving a local crime gang and a major Mob syndicate. Helping him piece things together is his father-in-law, "Sheriff Hank Larsson" (Ted Danson). The investigation will lead them to a colorful cast of characters that includes "Karl Weathers" (Nick Offerman), the town lawyer of Luverne, Minnesota. A Korean War vet, Karl is a flowery drunk blessed with the gift of gab and the eloquence of a true con artist.

Three-time Emmy winner Brad Garrett will play "Joe Bulo," the front man for the northern expansion of a Kansas City crime syndicate. The new face of corporate crime, Joe's bringing a Walmart mentality to small town America. His number two is "Mike Milligan" (Bokeem Woodbine). Part enforcer, part detective, Mike is always smiling – but the joke is usually on you. Bulo and his crew have their sights set on the Gerhardt crime family in Fargo, currently led by matriarch "Floyd Gerhardt" (Jean Smart).

With her husband at death's door, Floyd takes over the family business, frustrating her eldest son, "Dodd Gerhardt" (Jeffrey Donovan). An impatient hothead with a cruel streak to match his ambitions, Dodd can't wait for both his parents to die so he can take over and expand their business from kingdom to empire. "Bear Gerhardt" (Angus Sampson) is the middle son, an intimidatingly large man who, although inarticulate, is the most decent of his clan. "Rye Gerhardt" (Kieran Culkin), the youngest of the Gerhardt clan, views himself as a big shot, but in reality he's just a small dog who barks big.

"Fargo" season 2 premieres this September.

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