Sound off now on the latest episode of CSI. Our TV Fanatic critic gave it a four out of five stars.

Looking ahead, two major incidents take place on the May 6 installment of the highly-rated series:

1. A mother whose family disappeared years ago is considered a suspect in their death.
2. There's a shooting at CSI headquarters.

Check out the official promo for "Lost & Found" now.

[video url="http://www.tvfanatic.com/videos/preview-of-csi/" title="Preview of CSI"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.