After much planning, the day of Alison’s memorial is around the corner and the girls are ready to say their goodbyes. But when Alison’s brother Jason arrives, Spencer, Aria, Hanna and Emily quickly learn that saying goodbye is at the bottom of his list. As Jason takes over, and Detective Wilden returns, will the girls be able to celebrate Alison’s life in the peaceful and positive way they were hoping for? Meanwhile, Hanna is forced to deal with a situation at home that could really cramp her “it girl” status.

As the heat is turned up on the suspicions surrounding Spencer, the girls must come to the reality that they aren't the only ones hiding secrets in Rosewood. Spencer remembers something that happened the night of the murder.

Love is a powerful motivator for Aria, Emily, Hanna and Spencer, especially if it means keeping their loved ones safe.

After lying to Alison and Jason about Charles, Kenneth comes clean about the family’s connection to the young boy. While he won’t give much detail about Charles’ past, he say’s enough to give the PLLs a clue of where to look for the missing pieces – Radley Sanitarium. With Radley now closed and the files shipped off to be shredded, the girls must act fast before all traces of Charles’ past disappear.

Meanwhile, Caleb’s protective nature starts to pinch Hanna, and Spencer seeks a remedy for her sleeping issues.