Sons and Daughters

S2 E6: Jack and his team search for a teenage boy, Ethan Sawyer (Jonathan Murphy), after he disappears from his home. Ethan's parents think that their son is a happy teenager about to take his Scholastic Aptitude Tests in preparation for college. But the agents learn that the boy was extremely troubled, having dropped out of his study sessions after discovering that his girlfriend and other friends were involved in afternoon sex parties. When Ethan's girlfriend claims to have been raped, the squad must find out if Ethan's possible involvement led to his disappearance.