Pretty Little Liars 7×18 “Choose or Lose” Season 7 Episode 18 Sneak Peek #3 – With the Rosewood police closer than ever, A.D. tries to split the Liars apart in an all-new episode of Freeform’s hit original series “Pretty Little Liars,” airing Tuesday, June 13th. In the episode “Choose or Lose,” the Rosewood PD turn up the heat on the Liars, causing loved ones to try and close ranks. Aria’s recent collaboration with A.D. comes to the attention of a surprising source. A.D. presents the PLLs with a choice designed to drive a wedge between them. Meanwhile, everyone tries to find a bit of happiness before all hell breaks loose. Toby returns to Rosewood, and Aria makes a horrifying discovery.