Pretty Little Liars Season 1 -

The first season of premiered on June 8, 2010, on ABC Family/Freeform . It introduced the world to the affluent but secret-filled town of Rosewood , Pennsylvania, where the lives of four estranged friends— Aria , Spencer , Hanna , and Emily —are upended one year after their group leader, Alison DiLaurentis , mysteriously disappeared during a sleepover . The Core Mystery: Who is "A"?

Pretty Little Liars Part 1 (TV). (Contains spoilers) - Bookmarkedd Pretty Little Liars Season 1

Each protagonist faces individual challenges that "A" exploits throughout the 22-episode season: The first season of premiered on June 8,