'Sons of Anarchy' Season 6 Trailer: Smell a Prison Rat? (Video)

The FX biker drama returns on September 10.

Sons of Anarchy will return with a shocking premiere episode on September 10.

At TCA last week, creator Kurt Sutter spoke about the controversial event that will occur in the season premiere, saying that it's something he's wanted to put into the show for several years.

A new trailer for season six of FX's biker show has debuted, showing plenty of new footage, but leaving out the shocking event that will take place.

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So what do we learn from the new trailer?

Jax (Charlie Hunnam) is running the California motorcycle club while his wife Tara (Maggie Siff) is very unhappy in jail. Clay (Ron Perlman) is also in jail, and there's some concern that Clay will rat on his club in order to survive.

"I think Clay would do anything to stay alive," says Jax.

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Donal Logue is also back as the very pissed off former ex-U.S. marshal who is determined to bring down the motorcycle club and there are some issues within the club itself because we see that Chibs (Tommy Flanagan) taking a swing at Juice (Theo Rossi).

Watch the new trailer below.

Sons of Anarchy's sixth season premieres on Tuesday, Sept. 10, at 10 p.m. on FX.