Meg DeLacy

When the crushed body of a young teen who ran away from a treatment center for troubled girls is found in an abandoned building, Voight sends Halstead under cover as a guard to investigate the center from the inside.

Simon's mother asks Alec to help stop a suicide contagion when a third student death strikes the campus; Alec asks Marisa to help when he thinks there might be more to the case; Phoebe struggles with her next career move.