<Tr> <Td_colspan="2"> List of Pretty Little Liars episodes </Td> </Tr> <P> The seventh and final season of the American mystery drama television series Pretty Little Liars, based on the books of the same name by Sara Shepard, was renewed on June 10, 2014, for two additional seasons, making the show Freeform's longest running original series . </P> <P> The season consisted of 20 episodes, in which ten episodes aired in the summer of 2016, with the remaining ten episodes aired from April 2017 . The season's premiere aired on June 21, 2016, on Freeform . Production and filming began in the end of March 2016, which was confirmed by showrunner I. Marlene King . The season premiere was written by I. Marlene King and directed by Ron Lagomarsino . King revealed the title of the premiere on Twitter on March 17, 2016 . On August 29, 2016, it was confirmed that this would be the final season of the series . </P> <P> A.D. gives the Liars 24 hours to find Charlotte's real killer or Hanna dies . While discussing possible suspects, the girls' suspicion fell on Alison . Aria suspects the red jacket blonde she saw entering the church was Alison . Emily finds the jacket in Alison's things and Caleb gives it to A.D. Meanwhile, Hanna manages to escape . Elliot's true motive is later revealed to Alison; she managed to use his phone to alert the girls to her location when he takes her out in his car one night . She jumps out of the car and he gives chase but Hanna accidentally runs him over and they bury him in the woods . </P>

How many episodes of pretty little liars season 7b