There's a new bully in Rosewood on the upcoming epsiode of "Pretty Little Liars" season 7.

Titled "These Boots Were Made for Stalking," next week's episode will see the ladies figure out whether a high-schooler is involved with A.D.'s operation. According to the official synopsis, Emily (Shay Mitchell) gets into a conflict with teenager Addison (Addison), who seems to remind her of Ali (Sasha Pieterse) back in high school. She later suspects that Addison may have ties to a familiar foe, A.D.

Meanwhile, Jenna (Tammin Sursok) stirs up even more trouble when she comes back to town and brings some insight into recent events. Aria (Lucy Hale) talks to Holden (Shane Coffey) about her relationship with Ezra (Ian Harding), while Spencer (Troian Bellisario) confronts her mother about keeping family secrets. Determined to find answers, Spencer meets up with Detective Furey (Nicholas Gonzalez) and asks for his help.

Released in 2010, "Pretty Little Liars" immediately became a pop culture juggernaut as it changed the way viewers watch TV. Aside from leading Freeform's top-rated shows, it is also one of the first TV programs to make the live-tweeting trend. The teenage mystery drama is now on its final season, and the cast and creator of the show recently shared details on the last few episodes.

Speaking with Us Magazine, creator Marlene King confirmed that more than one main character will be killed off before the season ends. A.D.'s identity will definitely be revealed, but it's not who everyone thinks it is.

Star Ashley Benson shared that she was stunned when she learned about the main villain's true identity. "I don't think anybody would guess it." Her costar Tyler Blackburn teased the character might be someone fans already know: "You've never met them. You kind of have. When you see it, you'll understand what I'm saying."

The seventh and final season of "Pretty Little Liars" airs every Tuesday night at 8 p.m. EDT on Freeform.