Pics and Description for:Episode (3.17) [4.05] 4.04 - The Finger in the Nest ( Collapse )
And a pic via this interview with Hart Hanson
, that's from Episode 4.07 - The Perfect Pieces in the Purple Pond
aka the return of Zack. I'm amused by the picture's filename: "Bones_Zack_in_Loony_Bin"