Season 2, Episode 18
Air date August 2, 2010
Episode guide
Bullet Bump
Pied Piper

The episode "Headlock" is the eighteen episode of Season 2. The episode originally aired in the U.S on August 2, 2010 on the FOX network.


The FBI investigates the murder of an illegal underground fighter, but Dr. Lightman tries to conceal his relationship to the event. Meanwhile Dr. Foster finds out discovers that her new boyfriend may have a big secret.

Episodes of Season 2
Season 1Season 3

The Core of ItTruth or ConsequencesControl FactorHoneyGrievous Bodily HarmLack of CandorBlack FridaySecret SantaFold EquityTractor ManBeat the DevilSweet SixteenThe Whole TruthReact to ContactTeacher and PupilsDelinquentBullet BumpHeadlockPied PiperExposedDarkness and LightBlack and White