Three masked assailants commit a quadruple murder during a home invasion. With Max on the mend after her attack, Catherine Willows is called forth to take the lead even as she is troubled by her rocky relationship with her daughter, Lindsey.

Grissom and Willows return to help the CSI team solve a catastrophic case that paralyzes all of Las Vegas, on the special two-hour series finale.

Grissom and Willows return to help the CSI team solve a catastrophic case that paralyzes all of Las Vegas, on the special two-hour series finale.

Gwen's fantasy is to go back in time and be the princess she longs to be -- pampered, rich and cared for -- but she soon finds out the king is preparing to marry her off to a cruel, ambitious prince; Ruby isn't feeling like herself.