Patrick Jane is kidnapped and Lisbon and the team go back through years of Jane's casework to find suspects only to realize that almost everyone he's ever dealt with might want to harm him.

The CBI pursues two lines of investigation when a Santa is murdered: Patrick Jane goes undercover in an AA group; and Rigsby and Van Pelt question members of an authentic Santa society. Meanwhile, following the demise of a person in custody at the CBI, J.J. LaRoche is brought in to question the team when it appears to be an inside job.