Christine encourages Ritchie's school principal to let the students take a subway on a field trip to teach them street smarts, but it's Christine who gets left at the station.

Gary tries to help Mitch find work after he returns from abroad. Meanwhile, Allison gets a job as Curtis and Charleen's wedding planner.

The team profiles a truck driver who abducts women. Gabrielle Carteris guest stars.

The CSIs probe the murders of two young journalists who were investigating gold fraud.