ABC Family's "Pretty Little Liars" - Season Six

PRETTY LITTLE LIARS - "Last Dance" - It is prom time at Rosewood High, except for Alison, Aria, Emily, Hanna and Spencer who have been banned due to "security" concerns. As the girls see this as the final humiliating blow to their high school careers the girls' mothers try to make the best of a bad situation by offering a home prom in Spencer's barn. At first reluctant, the PLLs agree and try to make the best out of a bad situation. But one to never miss a formal, Charles has other plans in store to make this a night they will never forget. Meanwhile, Veronica, Pam, Ashley and Ella use prom night to touch base on everything that has happened to their daughters, on an all-new episode of Walt Disney Television via Getty Images Family's hit original series "Pretty Little Liars," airing Tuesday, August 4th (8:00 - 9:00 PM ET/PT). (Photo by Eric McCandless/Disney General Entertainment Content via Getty Images Family via Getty Images)