Lauren Birkell

Catherine locks horns with Grissom when a man she flirted with in a bar becomes the prime suspect in a murder investigation. Meanwhile, Mia deals with cross-contamination of evidence in the DNA lab.

While Ruth tries to bond with George on a fossil hunt, Claire has the urge to experiment with Edie. Plus, Federico breaks things off with Sophia, but is it too late?

David worries about weathering a long-distance relationship as Keith prepares to go off on a three-month tour with Celeste. Meanwhile, Ruth encourages Nate to join a bereavement group to help him move on from Lisa. Ruth gets the idea to set up George's son Kyle with the friendly checkout girl at her favourite fabric store.

Ruth is giddy about an upcoming workshop with George; Claire fights Russell over credit for her latest photos; Brenda and Billy begin to heal their rift.