'Pretty Little Liars' 100th Episode Preview: The Queen Bee Returns to School

The 100th episode of Pretty Little Liars airs tonight.
Photo Credit: ABC Family

It is Alison's first day back at Rosewood High and Mona and her army are ready in "Miss Me x 100," the 100th episode of ABC Family's hit serial Pretty Little Liars, premiering Tuesday, July 8th at 8 p.m. ET/PT.

The day has finally arrived – Alison’s first day back at Rosewood High, and neither the PLLs nor Alison are really ready for it. Determined to put on a brave face, Alison returns to also help heal the damage she did years ago. But are apologies enough for those who Alison has hurt in the past? Not if Mona and her army have anything to say about it.

Meanwhile, Caleb and an old foe return to Rosewood.

Watch a sneak peek video 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, Lucy Hale, Ian Harding, Laura Leighton, Shay Mitchell, Janel Parrish and Sasha Pieterse.