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Exclusive CSI Season Finale Sneak Peek: Will Treat Williams End Up 'Dead In His Tracks'?

Treat Williams is being pulled into CSI‘s orbit for tomorrow’s season finale (CBS, 10/9c) and TVLine has an exclusive first look at the TV vet’s big debut.

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As TVLine first reported, Williams will guest-star as Sam, a former Sheriff’s Deputy who pioneered new methods of crime scene investigating in the 1980s. In the finale, Sam is drawn back into the fray when an old case of a 12-year-old girl’s murder is reopened.

For Williams’ sake, let’s hope the finale’s title, “Dead In His Tracks,” is not referring to Sam.

Browse the full shot from Williams’ CSI debut below.

Treat Williams CSI