Ty Upshaw

CASTLES4, E7

Cops & Robbers

Martha and Castle are held hostage by bank robbers dressed in hospital scrubs; Beckett's rescue efforts are hindered by a strict hostage negotiator (Dean Norris).
CSI: CRIME SCENE INVESTIGATIONS2, E14

The Finger

Detained by the police, a developer shows Catherine a woman's finger in a tin, prompting a kidnapping investigation.
NCISS2, E22

SWAK

When Tony opens a letter releasing a mysterious powder from inside, he and Kate are put into biohazard isolation as a precaution.
CSI: CRIME SCENE INVESTIGATIONS3, E13

Random Acts of Violence

Warrick investigates a drive-by shooting in his old neighborhood; Nick follows up on the murder of an Internet company worker.
CSI: CRIME SCENE INVESTIGATIONS5, E6

What's Eating Gilbert Grissom?

The return of the blue-paint serial killer, who got away once before, troubles Grissom as the team investigates the murders of four college students.
CSI: CRIME SCENE INVESTIGATIONS5, E7

Formalities

The CSI team investigates the death of a high-school student at a private party in a hotel suite upstairs from the school's homecoming dance.