'Sons of Anarchy' Season 6 Promo Packs a Punch (Video)

FX's hit show about the California motorcycle club returns in September.

Sons of Anarchy is coming out swinging for season six.

The first promo for the upcoming season of FX's hit biker drama shows the club members involved in a slow-motion brawl.

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Debuting during the premiere of The Bridge on FX on Wednesday night, the trailer is perhaps one of the most artistic renditions of a brawl we've ever seen.

Season six, which will premiere in September, sees Jax Teller (Charlie Hunnam) dealing with the problems of his motorcycle club and the tension facing his family.

At the end of season five, Jax's wife (Maggie Siff) was carted off to jail just after she had told Jax that she was moving to Oregon with the kids -- with or without him. The California motorcycle club was also falling apart.

Watch the new promo below.