Light – In the conclusion of the two-part Season 1 finale, new evidence emerges that gives credibility to Pierce’s conspiracy theory. Meanwhile, Pierce is forced to confront truths about Natalie.
Shadow – In Part 1 of the two-part Season 1 finale, a conspiracy theory swirls about an effort to cover up the murder of a senator. Pierce is on the case, but he begins to suspect that seemingly trustworthy people are plotting against him.
Kilimanjaro – Pierce and Moretti investigate the slaying of a female college student, but the case soon forces Pierce to face truths from his past. Meanwhile, Moretti reconsiders her relationship with Dr. Hathaway.
Nemesis – Pierce investigates a case revolving around a schizophrenic. Meanwhile, Moretti tries to impress her new FBI boss.
LoveSick – Pierce is enlisted to help the FBI investigate the slaying of a therapist. Elsewhere, Moretti inches closer to Professor Hathaway; and Haley uses Pierce as a pawn to get funding for a new building.

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Messenger – Pierce and Moretti investigate the murder of a young man who was a member of a cult. Elsewhere, Pierce scores a university award for his research.

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Cipher – Pierce scrambles to crack a coded newspaper message left by someone possibly connected to a murder.

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Cipher – Pierce scrambles to crack a coded newspaper message left by someone possibly connected to a murder.

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86′d – Pierce and Moretti spring into action when a serial killer from 1986 returns and begins murdering again. Moretti receives advice about the case from her father, who investigated the original killing spree.

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Faces – Pierce is enlisted to help crack the case of a murdered mail-order bride. A twist marks the investigation when it’s discovered the prime suspect suffers from an unusual condition. Elsewhere, Moretti is drawn to a handsome new professor.