In a world of noise, Clarence is a jar of sunshine, pure and simple. He sees the world only in his favorite colors: goofy grape and neon green. Clarence values his friends Jeff and Sumo and his mother Mary more than gold. No matter what happens, good or bad, nothing brings Clarence down.

Clarence is a new kid in school who can't wait to make new friends. When he hosts a party at his house, only the wild Sumo and uptight Jeff show up, but Clarence shows them both how to have fun - the Clarence way.