AceShowbiz -

A new sneak peek at the upcoming season 4 of "Longmire" arrives ahead of the premiere on September 10 on Netflix. It shows that Robert Taylor's Walt has both Katee Sackhoff's Vic Moretti and Lou Diamond Phillips' Henry Standing Bear on his side.

It opens with Vic telling Walt, "I will lie for you. I'll say whatever you want me to say. I just need you to tell me what the hell's going on." In another scene, Walt assures Henry that he'll understand if he wants to "step away," but Henry insists he's "never been one to back down from a fight."

In the next season, Walt, having found out who was behind the murder of his wife, succumbs to his darker impulses and takes off in pursuit of the killer with murder on his mind. Meanwhile, Branch Connally (Bailey Chase), the deputy whom Walt fired for erratic, violent behavior, believes he has already figured out who the real culprit is. But during his confrontation with this suspected killer, a gun goes off. Now the audience will finally learn what happened, and whether Walt can be stopped before he makes a fatal choice.