A 29-year-old man dies after three-day spell of nausea and vomiting. While he was still alive, the man told his sister he believed he had gotten food poisoning from a fish sandwich he had eaten four days prior to his death. Dr. G knows that deaths from food poisoning are rare, but having a read a recent press release reporting a fish poisoning outbreak, she must investigate the possibility. A 42-year-old woman sustains fatal injuries in a car accident involving a drunk driver. In order for the drunk driver to be held accountable for the woman's death, it must be confirmed that the woman was not responsible for the crash. Dr. G's role in the case is to autopsy the victim in order to investigate the possibility that the woman suffered a medical condition, such as a heart attack or stroke, that caused her to lose control of her car. By the end of the investigation, Dr. G makes an unexpected and shocking discovery.