(SARA holds out her hand. (SARA notices HANK in the waiting room kneeling in front of a woman in a wheelchair.) Warrick: Catherine. Sara: Who? Car checks out perfectly. GRISSOM and NICK walk into the lab. She died of carbon monoxide poisoning. Happened as an accident the first time.
Plan: A: Sara; Q: Who finds out some disturbing news about her boyfriend Hank? A: a deadly car crash; Q: What do Sara, Catherine and Warrick investigate? A: carbon monoxide poisoning; Q: What was the cause of death of the woman who died in the car crash? A: an accident; Q: What was the death of a woman who died of carbon monoxide poisoning not? Summary: Sara finds out some disturbing news about her boyfriend Hank while she, Catherine and Warrick investigate a deadly car crash. Meanwhile Grissom and Nick find out that the death of a woman who died of carbon monoxide poisoning was not an accident.