'Pretty Little Liars': Spencer Has A Clue About Mona's Next Target

Is Mona planning to target Emily next? The answer to that question is yes, if you consider the clip below. EW has snatched about a minute from Tuesday's forthcoming hour of ABC Family's soapy teen mystery "Pretty Little Liars" -- EW's cover subject this week -- that finds Spencer (Troian Bellisario) forcefully warning Emily (Shay Mitchell) that she may be the next one to feel Mona and the "A" team's wrath.