Based on the popular children's book series by Harry G. Allard Jr., Miss Nelson can't control her crazy classroom because she's just too nice. But when she disappears, her replacement is the hard-as-nails, detention-loving, recess-canceling, substitute teacher Viola Swamp! With The Big Test approaching, the kids suddenly realize how much they miss Miss Nelson and they'll do anything—including hiring a private eye—to solve the mystery of her disappearance and bring her back.
