Payton and Emma left a trail of chaos in their wake when they ''traded faces'' just for fun. This time they'll switch places to help each other and their friends out of a ginormous mess! Payton is helping out on the middle school musical while Emma puts her brains to use by tutoring--more like ''twotoring''--identical twin boys. But when the boys turn out to be double trouble, Payton and Emma's worlds collide and lead to more middle-school mix-ups and mayhem. In the end, Payton and Emma realize that no matter what, they have each other's backs (as well as faces).