Identical twin sisters Payton and Emma Mills have "traded faces" and created "twin-dentical chaos" at school and at home. Now they are off to "twin-vade" New York City! Payton's drama club is going to see an Off-Broadway show, and Emma's mathletes team is competing in an elite competition. But Payton never imagined the star of the show would be an old nemesis, and Emma is frustrated by her teammates' intense focus on winning. To rescue each other, Payton and Emma must pull off another "twins-formation"...but is the big city ready for their mixed-up mayhem? Payton and Emma! (or is it Emma and Payton?) and their mixed-up mayhem? Which is which in the biggest twin switch yet!