The veteran series will air just 16 episodes instead of 22 this season.
She joins as a regular for the CBS crime drama's fifth season.
Guest Director Tony Scott and Guest Star Val Kilmer tell all about this sizzling season opener.
They last worked together on the feature film Deja Vu.
The helmer behind Man On Fire and Deja Vu goes TV.
Helming the season premiere of the fourth season on September 28.
Playing a champion of an all-out fighting league suspected of murdering a competitor.
The actor discusses what it's like being a television math hero.