Larry Mitchell

Into Deep. When actionable evidence finally surfaces against Sean O'Neal, Upton and the team work relentlessly to build a case in secret. They discover Sean is more elusive and dangerous than anticipated.

When a major event cripples Las Vegas, Gil Grissom, Catherine Willows and Jim Brass return to help the team; D.B. and Sara consider the future; Lady Heather returns.

In an upstairs/downstairs-type investigation, the CSIs look into solving two forensic mysteries.

The CSI team investigates the murder of an entire family, except for one daughter, who supposedly is possessed by the devil.

CSI investigates two deaths, both linked to the same killer.

The lead suspect for the high-profile murder of anti-drug crusading assemblyman Danilo Zamesca is Thomas Simon, the west coast's biggest drug supplier.