Grissom is called to the murder of a 17-year-old in a casino penthouse, but the entire team become involved when it is discovered that a kidnapping took place along with the murder.
Horatio and the team investigate after the corpse of an unidentified girl is found near an extremely strict rehabilitation camp, and Speedle and Delko probe the death of a swindler.
Claire tries to determine who is responsible for the attacks on Gretchen and Annie, Sylar maintains his control of Matt, and Peter uses his newly gained ability to help Emma.
Sylar continues to torment Matt, HRG and Tracy help a young boy who has suffered many hardships in his life, and Claire and Gretchen have a problem with their new sorority sisters hazing them.