Hanna is taken to the hospital in the wake of the hit-and-run, and her friends lean on each other and retrace everything that's happened to them since "A" entered their lives.

"A" tempts Hanna to return to her old criminal ways. Meanwhile, Noel continues to go after Ezra; Emily's mother stops pretending to accept Maya; Spencer adjusts to her sister's marriage; and the girls get some surprising assistance.