It only rains on the unkind. When Mia finds an old yellow umbrella under a bus stop bench, she thinks it's just lost property. Then Mr. Dobbs snaps at her, and a tiny storm cloud appears over his head. Suddenly, Mia has the power to make mean people pay. It feels amazing, until the rain falls on her best friend Jonah. But the umbrella has a past. Someone owned it long before Mia, and that someone has a secret that could flood the whole town. Across 26 episodes, Mia and Jonah chase the umbrella's mystery, face a rival with a second umbrella, and learn that kindness isn't as simple as it looks. Be kind, or get soaked.