Brennan, Booth & Co. returned for a sixth season Thursday night. For a comprehensive rundown of where they stand and where they're going, check out our Bones review.
Next week, things get even more interesting when Booth's girlfriend drops by, unexpectedly, from her assignment as a correspondent in Afghanistan. Should be fun, right?
This leaves Brennan unsure of her relationship with Booth, with whom she works on a mysterious case, examining a couple's remains discovered in a National Park cave.
Who are they and why were they killed? Here's a promo for next week ...