Brennan Keel Cook

Matt's first birthday party gets crashed by a rival; Joyce decides to "get back out there."

When an infamous arms dealer, Reymundo Dia, is released from prison and bodies start piling up, Torres is forced to face the repercussions of his actions during an undercover operation he worked on years ago.

An abandoned horse covered in blood leads the CSI team to a halfway house for convicted murderers. Also, Grissom and Sara begin to circle their prime suspect in the David Hodges case.