Season 5 Episode 12

Title: The Proof in the Pudding
Air Date: January 21, 2010 at 12:00 AM PST

A group of government agents puts the Jeffersonian team on lockdown, insisting that they determine the cause of death of a top-secret, unidentified corpse. Booth breaks into the lab, with the help of his boss, to figure out what exactly is going on with the secret investigation.