This series focuses on the adventures of four fairytale friends who transform into reading-powered superheroes: Alpha Pig with Alphabet Power, Wonder Red with Word Power, Princess Presto with Spelling Power, Super Why with the Power to Read and Super YOU with the Power to Help. Together, they are the "Super Readers!" The Super Readers jump into books (literally) to find answers to everyday preschool challenges and embark on exciting adventures.

Super WHY! is part of the Ready to Learn initiative, focused on helping children learn to read, and funded by a cooperative agreement of the U.S. Department of Education, the Corporation for Public Broadcasting, and PBS.