Leon Russom

Bartlet and his staff rush to deal with an anticipated terrorist attack over a broad area. Meanwhile, C.J. has trouble adjusting to being protected by a handsome and capable Secret Service agent.

After construction workers find the body of an archbishop whose kneecaps were surgically removed, the team is back on the case of the Widow's Son serial killer. When Angela discovers what appears to be a victim tree in the evidence vault, the team realizes the killer employs a systematic pattern in selecting victims. With a musician and an archbishop the first to go, the team tries to predict who might be next and how they can stop the killer before he strikes again. Brennan and Booth continue to see Dr. Lance Sweets (John Francis Daley), who has some helpful psychological insights into the Widow's Son's motives. Meanwhile, Brennan's brother, Russ, comes out of hiding when he finds out that his girlfriend's daughter is extremely sick, but his appearance causes Booth to intervene with Brennan's family once again.

A young FBI agent is assigned watchdog duty over a fellow agent, but finds herself drawn into his investigations of paranormal and unexplained phenomena.

The team is looking for an ex-SEAL who escaped from prison in search of revenge. He is determined to find the real murderer of his wife.

Fear of the unknown propels Jericho into social, psychological and physical mayhem when all communication and power is shut down. The town starts to come apart at the seams as terror, anger and confusion bring out the very worst in some residents. Jake Green, the prodigal son of the town's mayor, becomes a reluctant hero when a school bus crashes as a result of the explosion.