Velasco asks Benson for help finding three girls who were trafficked from his hometown to New York City.

Rollins investigates an assault by a masked man at an underground party. Benson uncovers a suspect who may be valuable as a witness.

Agent Clay consults with Benson when a woman is found gravely injured at a remote campground and the suspect could be anywhere along the Eastern Seaboard. Bruno and Silva take a chance on an odd hunch to see if it becomes a lead.

A young boy seeks help when his sister doesn't come home from work. Benson and Carisi suspect a woman's assault was prearranged by a third party.