Rollins must revisit an old case when a child sent to juvenile detention is released after his 18th birthday.
The BAU team face one of their toughest cases yet ,when a prolific, border-crossing serial killer leads them on a hunt into Canada.
The detectives are spread thin when three major cases come in at midnight; Rollins and Carisi argue over an arrest.
The SVU struggle to find a serial predator who uses a date rape drug that leaves no evidence behind; Rollins receives some good news.
Rollins goes undercover to investigate a government worker who is dealing green cards in exchange for sex.