John L. Curtis

A woman who was accidentally switched at birth dies in surgery.

While investigating the murder of a convicted ex-cop, the CSIs stumble upon a list in his prison cell with names of several individuals he believed might have been his wife's true killer. (TV-14)

The team searches for Jack's friend Max Cassidy, a longtime FBI agent who disappears after leaving an emotional message on the answering machine of his wife, FBI agent Anne Cassidy, about the murder of his partner, Jimmy Haggerty. The squad investigates whether the industrial espionage case that Max and Jimmy were working is connected to Jimmy's murder and if Max is now a victim of Jimmy's killer. As a safety precaution, Max had attempted to pull Jimmy from the case, but Jimmy threatened to tell Anne a secret about Max if removed. Now, Jack and the others must consider Anne a possible suspect in her husband's disappearance.

Jack and the team must determine if a missing nanny is a kidnapping victim or a suspect when she and the infant in her care disappear from her employers' home. Initially, nanny June (Esperanza Catubig) is the prime suspect in the baby's disappearance after the child's affluent parents inform the agents that they'd just terminated June for stealing. However, when a caller demands a ransom in exchange for the safe return of both June and the child, the team contemplates who may have kidnapped the pair, while also considering that June could be orchestrating the crime. Emmy Award winner Chad Lowe ("Life Goes On") guest stars as Lawrence Pierce, the missing infant's father.

When an ultimate fighter disappears after winning a match, the team discovers he knew a lot of people that could have been responsible for his abduction. One suspect is a childhood enemy who was recently released from prison.