Emily Deschanel

This year, everything's changed for the Bones  gang. Last season of the Fox drama ended with Brennan and Christine on the run after the forensic anthropologist was framed for murder.

Grimm Exclusive: Which Bones squintern will idolize Nick?

In this promo for Season 8, we get our first glimpse at the way Brennan's disappearance affects those closest to her, and it seems as though Brennan's rule-breaking attitude is contagious.

But the most shocking reveal in the new teaser — Brennan's hair color! What do you think of a blonde Bones?

Bones returns Sept. 17 at 8/7c on Fox.