Season 2, Episode 5 Grievous Bodily Harm
First Aired: October 26, 2009
An old friend of Cal's (Lennie James) attempts to pull him into a criminal conspiracy. Meanwhile, the Lightman Group probes a high-school student's murderous threats.
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- Rating: TV-14
- Premise: A deception expert works with law-enforcement agencies, lawyers and private companies to sort out the facts in cases. Based on the real-life experiences of psychologist Paul Ekman, an expert in how facial expressions can betray emotions. (more)