Calvin weighs the pros and cons of making a major life change. Also, Marty turns to Dave for help dealing with a troubling discovery.
When Calvin's favorite restaurant closes and is replaced by a flashy pet spa, he worries the community is losing too many small businesses and starts a campaign to only buy local.
When Shelby Duggan is killed, leaving a ball from a Regency Love Weekend in Vegas, CSI is called to investigate. We learn she is one of two victims from that night.
