S5, E2: Brennan and Booth investigate the body of a man murdered for the undisclosed contents of a briefcase. Early evidence leads the team to suspect secret operatives are at work, and their theories are supported when the liquefied remains of a CIA agent are discovered in the trunk of a car. When Brennan and Booth interrogate the CIA's Assistant Director of Intelligence, they are left unsure of his allegiance to the U.S. Meanwhile, Brennan's best-selling book leads to financial success and serves as a point of contention with Booth, and Jeffersonian intern Wendell (guest star Michael Grant Terry) loses his scholarship, leaving the team to look for alternative funding to keep him around.