Meet Peyton, a spirited little girl with a heart as big as her imagination. Peyton loves flowers, the color pink, and painting beautiful pictures. But every so often, Peyton's temper rolls in like a summer storm cloud.

When Peyton's feelings hit a boiling point, out bursts the Anger Monster, a grumpy ball of fiery anger that stirs up some trouble. Join Peyton and her little brother on a journey of navigating the big feelings that come with getting really, really mad.