Lieutenant Tanner (Roma Maffia) returns to Rosewood to work on the Dunhill's homicide case, quickly targeting the Liars on her radar.
Caleb (Tyler Blackburn) and Hanna (Ashley Benson) secretly marry, while Alison (Sasha Pieterse) and Emily (Shay Mitchell) step forward with their relationship.
Tanner expresses her concern about the possibility of the Liars being involved in the case, and indirectly threatens Spencer, saying that she always found them guilty of something, just did not know of what exactly.
In a room of The Radley, given by Hanna's mother, the Liars and Caleb get together to discuss the Dunhill's murder when the board game begins a new round: "Choose or Lose".
At the police station, Tanner gives the girls a chance to tell their side of the story, but Spencer denies the opportunity.
Again, the girls leave Aria alone, punishing her for destroying Alison and Emily's nursery and for tearing Spencer's family apart.
While investigating, Caleb and Ezra find the cell tower location from which the game phone has been sending signals, and later discover that they are being sent from Mona's house.
The episode also features recurring appearances of Keegan Allen as Toby Cavanaugh, Roma Maffia as Lieutenant Linda Tanner, and Jim Titus as Detective Barry Maple.
"Choose or Lose" was written by Charlie Craig and directed by Norman Buckley, making it their last work on the show.
[4][5] "Choose or Lose" premiered on Freeform on June 13, 2017, to an audience of 0.96 million viewers, scoring a 0.4 Nielsen rating/share in the adults among the 18–49 demographic.