A billionaire is murdered in his Miami home just before he can sign an important legal document. When Horatio arrives on the scene, he's shocked to discover that the victim's widow is his former lover and Kyle's mother. She is also a leading suspect in her husband's homicide. In court, Kyle goes on trial for kidnapping and his mother makes it clear she will do anything to regain custody of him.

The CSIs find the body of Kathleen Newberry, but the money she got is missing. Horatio pays another visit to Julia Winston, but Julia has Horatio arrested for the murder of Antonio Riaz and extradited to Brazil. While investigating the case, Calleigh finds out her crime scene photos have been stolen and posted on the internet. The website eventually leads to ex-lab technician Dan Cooper, who has a personal grudge against Calleigh. Calleigh is kidnapped by somebody who knows her through the internet.