When a series of tornadoes hits Kansas, the BAU is called in to investigate bodies of young boys that turn up in the aftermath of the storms. Also, work pressures cause tension on JJ's home front.
In the third season premiere, the CBI investigates the kidnapping of a prominent lawyer and state house lobbyist - and the DLE Director (guest star Michael Gaston) wants Jane on the case. But Jane remains uncertain about his future with the unit after his face-to-face encounter with his nemesis, the serial killer Red John, last season.
Grissom and Nick investigate the death of a book restorer while Catherine and Sara are called to the scene of a fatal train crash.
The bombing of an influential charity's headquarters forces the team to sift through various rumors about the true reach of the organization's power.
A medical consultation with Liz's friend leads Christian to contemplate his relationship with Kimber. Sean begins to heal emotionally after an encounter with a patient seeking perfection.