Brett DelBuono

Detective Slaughter returns to enlist Castle’s help in solving a high-stakes robbery case, but later becomes the number one suspect.

Cooper gets bad news about Charlotte's sexual assault case; a case involving a pregnant drug addict hits Addison hard.

Vance returns to field duty -- with Gibbs as his partner -- when a murder investigation has a connection to a former NCIS agent incarcerated for stealing evidence.

Cuddy receives news that forces her to re-evaluate her priorities; a teenage patient's suspicious body scars suggest his illness is more than physical.

Terrorist leaders are suspected of murdering a retired Army sergeant; Deek connects with a person of interest in the case.

The team investigates when a high school bully is discovered stoned to death on the school's playing field.