The team is forced to take another look at a hit-and-run murder case; McGee becomes suspicious of Tony’s unusual behavior.

A crime scene poses a national security risk when the LA team discovers the location was used to create a deadly toxin which is now missing.

In the second part of the story begun in “Tick, Tick, Tick,” the serial killer remains at large and is taunting Castle, Beckett and Jordan Shaw to catch him

Federal Agent Jordan Shaw, an insightful and accomplished Federal investigator teams up with Castle & Beckett to hunt down a cunning and elusive serial killer.

Lincoln takes members of the team to Las Vegas where Sucre gets an indecent proposal. Sarah learns about Michael’s condition, and Roland pushes his luck too far. Gretchen teams up…

The entire operation may be in jeopardy when Mahone gets into trouble with the law. Gretchen’s sister receives a surprise visitor. The Company may be onto Self. T-Bag continues to…

Self locates another card hidden in a safe within a secure federal building, as Mahone continues his quest for revenge. Meanwhile, T-Bag’s new life may be in jeopardy.

Michael, Lincoln and Sucre must crash a police benefit to obtain the next card key. Reeling from another death, Sarah falls back into an old habit. T-Bag arouses suspicion and…

The BAU profiles a serial killer who takes families hostage and lives with them as a father figure during what is supposed to be their family vacations.

Dark powers. Dean fears Sam is using his paranormal gifts in conflict with God’s plan. And an ordinary guy in an ordinary town gets a major case of the munchies….