CSI: New York - Spoilers

Episode 5.01 - Veritas: There is an escaped killer on the loose. Detective Flack's sister Melanie is introduced in the season premiere. She is said to be a 20-year-old who is strong willed and rebellious. She will find herself involved in a case her brother is investigating. Mac gets help from one of Melanie's friend during his time of need. Source: SpoilerFix.com