This week's 100th episode of Bones has received a lot of attention because it flashes back to the first case on which Brennan and Booth worked together.

But it's also a big deal because David Boreanaz directs the installment. How does the actor feel about the focus of "The Parts in the Sum of the Whole?"

"It’s great to see them get into their personal lives,” Boreanaz told Fancast.com. “But for right now, I still maintain that they should be partners and let’s see what happens and where they go after this season, because it’s a pretty good season-ender.”

Tell us more about that season-ender, David.

“There’ll be a big shift, not only for [Booth and Bones] but with everybody,” he says. “We shot the last scene last week, and it was very moving. It was hard to get through, but I think that it’s going to elevate these characters even more so for the next seasons to come.”

For more photos from the episode, as well as other glances at what's ahead, visit our section of Bones spoilers right now!

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