Bones (2005)

S9E16 The Source in the Sludge

Title: The Source in the Sludge Plot: After the assassination of a CIA informant, Booth partners with CIA Agent Danny Beck (guest star Freddie Prinze Jr.) to hunt down an Afghan terrorist. Simultaneously, Brennan expresses her desire to join Booth in fieldwork, forcing the pair to grapple with the effects this could have on their family dynamics.