The Story: Cady Heron is a naïve teenager who grew up homeschooled in Africa and moves to suburban Illinois.• The Mission: She is urged by high school outcasts Janis Sarkisian and Damian Hubbard to infiltrate "The Plastics"—a popular clique led by ruthless queen bee Regina George and her sidekicks Gretchen Wieners and Karen Smith.•

The Twist: As Cady schemes to take down Regina, she starts acting just as toxic, leading to chaos, a leaked "Burn Book," and a journey toward personal redemption.