“Pretty Little Liars” renewed for fourth season

PRETTY LITTLE LIARS - "This Is a Dark Ride" - Aria, Emily, Hanna and Spencer are looking forward to some good old Halloween fun now that the traumatic events with Nate are behind them. But once aboard the Rosewood Ghost Train, the girls are in for much more than just some childish trick or treats. With "A" running amuck and unexpected party-goers popping up at every turn, this Halloween event becomes one killer party, in "This Is a Dark Ride," a special Halloween-themed episode of ABC Family's hit original series "Pretty Little Liars," airing Tuesday, October 23rd (8:00 - 9:00 PM ET/PT), as part of ABC Family's "13 Nights of Halloween" programming event. (ABC FAMILY/ERIC MCCANDLESS) TROIAN BELLISARIO

The ABC Family drama “Pretty Little Liars” has been picked up for a fourth season, according to a news release.

Twenty-four one-hour episodes will make up Season Four, which will begin airing mid-2013.

A special Halloween-themed episode of “Pretty Little Liars”‘ is scheduled to air at 7 p.m. Tuesday, Oct. 23, and then Season Three resumes in January 2013.

Details on series and the Halloween episode, provided by ABC Family, are as follows:

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