David Boreanaz in a Russian fur hat (and accompanying accent).

Emily Deschanel appropriately dressed as "the beautiful assistant."

Knives. Balloons. A murder mystery. And on top of it all, Andy Richter controlling not the universe, but a three-ring circus.

Check out this exclusive behind-the-scenes look at the first of Bones' two new episodes airing this Thursday, starting at 8 pm/ET on Fox.

Also: Watch our brand-new videos with David Boreanaz (previewing exploding boats, the Gravedigger's return, monkeys and more) and even more scoop from the exec producers of Bones.