Aria, Emily, Hanna and Spencer are sure that Mona is up to her old tricks again, but can they prove it, in "Mona-Mania!," an all new episode of ABC Family's hit original series PRETTY LITTLE LIARS, airing Tuesday, January 15th at 8 p.m. ET/PT.
After the shocking events at the school marathon, Aria, Emily and Spencer are sure now more than ever that Mona is up to her old tricks. Hanna, still holding out hope for her former friend, is not so sure. With Mona seemingly popping up everywhere, it sure seems like she has a plan. But with no real evidence to prove Mona is back to her evil ways, how can the Liars prove what they believe to be true?
Meanwhile, Aria's fears about her father grow stronger when something vital that is hidden in her room goes missing.
Watch a sneak peek below:
PRETTY LITTLE LIARS is produced by Alloy Entertainment in association with Warner Horizon Television and is executive produced by I. Marlene King, Oliver Goldstick, Leslie Morgenstein and Joseph Dougherty. The series stars Troian Bellisario, Ashley Benson, Tyler Blackburn, Holly Marie Combs, Lucy Hale, Ian Harding, Laura Leighton, Chad Lowe, Shay Mitchell, Janel Parrish and Sasha Pieterse.
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