Later that night, the girls argue about the validity of Seth's claims. Spencer comes clean about her parents' belief that her sister could have had something to do with Alison's death. She also tells them about Jason being her brother. The girls are stunned. Spencer doesn't know what to think, but she knows Melissa had motive and opportunity to kill Ali.
The hunt for answers about what Ali knew leads Aria, Emily, Hanna and Spencer to a rundown doll hospital that holds more than just secrets. #PLL #PrettyLittleLiars
