No Stone Unturned

S6 E6: With all signs pointing to Lesli (recurring guest star Elizabeth McLaughlin) as the tormentor in the hoodie, the PLLs are on a mission to get concrete proof before bringing their findings to the police. But as the girls ramp up their investigation, threats from "A" escalate. Meanwhile, a friend of Emily's makes her a surprising offer, and Spencer is pressured by her family to make an important decision.