The Sons of Anarchy Season 5 challenge is on.

Kurt Sutter has posted a new blog entry in which he tells fans of his show to tune in for the September 11 premiere.

If the ratings for this opener exceed the first Season 4 episode by any percentage points at all, Sutter will randomly select four U.S. Twitter followers and fly them to Los Angeles to watch a subsequent episode with the Sons of Anarchy cast and crew.

He'll also award four international followers with swag baskets.

The new season will focus on Jax at the head of the SAMCRO table, while also introducing such characters as Nero Padilla (Jimmy Smits) and Damon Pope (Harold Perrineau).

Stay up to date on the latest scoop in our Sons of Anarchy spoilers section!

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.