What do a murdered woman, a slain police officer, and a mysterious arson case have in common? Enter the gritty world of CSI and search for the answer with Grissom, Catherine, and the entire Crime Scene Investigation team. As a new recruit, you'll have to learn how to use all of the investigator tools, including cotton swabs, rubber gloves, and plaster molds. Armed with high-powered forensic equipment and razor-sharp wits, delve deep into the mysteries of five baffling crime scenes to reveal the truth.