A SPECIAL PREQUEL EPISODE OF "PRETTY LITTLE LIARS," KICKS OFF THE 13TH ANNUAL "13 NIGHTS OF HALLOWEEN" PROGRAMMING EVENT ON WEDNESDAY, OCTOBER 19TH AT 8:00 PM ET/PT ON ABC FAMILY

All Day Pretty Little Liars Marathon to Air 11:00 AM - 7:00 PM ET/PT, Along with the Pilot Episode at 9:00 - 10:00 PM ET/PT

Burbank, CA (Sept. 13, 2011) - It's the Halloween before Alison disappeared and where all of the secrets and lies began for Aria, Emily, Hanna and Spencer in "The First Secret," a special Halloween-themed episode of ABC Family's hit original series "Pretty Little Liars," airing Wednesday, October 19th (8:00 - 9:00 PM ET/PT). The all-day marathon and special episode kick off ABC Family's 13th annual "13 Nights of Halloween" programming event.

The streets of Rosewood are festive and little kids are running around the streets hoping for a good year of trick or treats and five best friends are looking forward to the biggest party of the season. It is the Halloween before Alison went missing and the only concern for Aria, Emily, Hanna and Spencer is to score an invite to Noel Khan's Halloween party. But with a new girl in town to challenge Ali for Queen Bee dominance, Spencer possibly losing the class president election along with her parents' approval, and a shocking revelation for Aria about her father - there may be more to worry about than finding the perfect costume. With all of the tricks and treats floating around Rosewood, there may be something more sinister waiting out there for Ali and her best friends.

"Pretty Little Liars" is produced by Alloy Entertainment in association with Warner Horizon Television and is executive produced by I. Marlene King, Oliver Goldstick and Leslie Morgenstein. The series stars Troian Bellisario, Ashley Benson, Holly Marie Combs, Lucy Hale, Ian Harding, Laura Leighton, Chad Lowe, Shay Mitchell and Sasha Pieterse.

Part of the Disney-ABC Television Group, ABC Family is distributed in over 98 million homes. ABC Family features programming reflecting today's families, entertaining and connecting with adults through relevant stories about today's relationships, all told with diversity, passion, humor and heart. ABC Family's programming is a mix of network defining original series and original movies, quality acquired series and blockbuster theatricals. ABC Family is also the destination for annual Holiday events with "13 Nights of Halloween" and "25 Days of Christmas!" ABC Family. A New Kind of Family.