May 27th, 2010 | 
Author: During a political protest an unhappy farmer threatens the U.S. Treasury Department building by parking his tractor full of explosives nearby. Meanwhile, Loker has to bear down with a group of third graders in a field trip stuck in the Lightman Group offices.
A finalist of World Series of Poker is gone missing, so Lightman, Foster and Reynolds go to Vegas to investigate his disappearence. Meanwhile, Loker and Torres start bounding.
Cal spends the holidays in Afghanistan, assisting in the rescue of two missing soldiers.
A troubled teenager believes he was abducted as a baby and turns to the Lightman Group to help him uncover the secrets of his past. Meanwhile, Loker investigates the origin of a deadly stampede that occurred at an electronics megastore the day after Thanksgiving.
When a government witness is murdered, the FBI hires The Lightman Group to determine who leaked the witness’ whereabouts to the killers and to protect Agent Reynolds, the star witness in the case. When Reynolds refuses to testify in the case, Lightman and Foster learn he is hiding something in his past.
A blast from the past pulls Lightman into a dangerous game of cat and mouse testing his loyalty. The Lightman Group look into a death threat from a high school student.
Eric Matheson, a man accused of killing is wife, is brought to the Lightman Group for questioning. Matheson goes to the extreme to convince everyone that he is innocent.
While in Mexico, Lightman and Emily work on a case involving a missing American woman. Back in the States, Foster looks into tainted blood in D.C. hospitals.
The group is called in to help determine a football player’s innocence or guilt.
A woman with multiple personalities is enlisted by The Lightman Group to investigates a murder case.