A serial killer from Dexter's past makes a shocking reappearance; Debra has problems settling into her new job; and Travis and Gellar contemplate their next move
Brother Sam, a minister with a criminal history, is brought in by the homicide department to help solve a macabre murder, but Dexter sees him for what he really is—and it's definitely not a man of God. Elsewhere, Debra's sudden hero status elicits a pair of surprising proposals
Dexter Morgan attends his 20th high school reunion; Dexter considers his son's legacy; Debra becomes an unexpected hero.
Alison's mom comes back to town and asks the girls to take part in a charity fashion show, which Mona helps run when Spencer gets too busy. Meanwhile, Aria works on stirring Jason's memory; and Emily questions the open dating policy she has with Samara.
Aria, Emily, Hanna and Spencer face an unknown evil.
Hanna assists Lucas with his dating life. Meanwhile, some of Aria's buried memories resurface when she runs into Jason; Spencer worries about Melissa's secretive exchanges with Ian; and Emily's mom can't keep the scholarship news a secret.
Aria takes a pottery class at a nearby college, putting her in proximity to Ezra---and Jenna. Elsewhere, Emily manipulates the truth about her swimming prospects; Hanna tries to join the yearbook staff; and Spencer grows suspicious of Jason and Melissa.
Emily reluctantly prepares to relocate to Texas until she meets with a college athletic scout. Meanwhile, Hanna deals with her father's return; Spencer puts on a brave face as Toby plans to leave Rosewood; and Aria is torn about letting Ezra go.
In the second-season premiere, the girls face the fallout from what happened with Ian at the church, and their parents have them talk with a therapist (Annabeth Gish). Meanwhile, Caleb returns to see Hanna; and Spencer is told that Toby is off-limits.