Benson and Stabler investigate a sexual assault case involving a teenage girl. They set up a sting operation to trap paedophiles on the internet.
Secret Service Agent Ethan Burke begins his investigation into the disappearance of two federal agents.
Dorothy will not heed Sophia's advice about the rekindled romance with Stan.
After discovering Bill Evans' corpse in an abandoned house, Ethan teams up with Beverly to look for clues. Meanwhile, Theresa and Ben head to Idaho to look for Ethan.
Kate's participation in a heinous act leaves Ethan stunned while Ben and Theresa continue their search for Ethan.
