 New technology on DNA testing reveals that a man convicted of a rape six years back is innocent and he is promptly release. Now a free man, he is eager on pressing charges against the department and the crime lab for his false conviction. Meanwhile, Horatio and his team reopen the case in hope to catch the real rapist. In the morgue, Alexx examines the body of a young woman who died from infections caused by a piece of cloth left inside her after an operation. She is intent on finding the surgeon responsible for this untimely death.