Two English children's new nanny arrives on the East Wind, slides up the bannister, carries an empty carpet bag with all kinds of things in it, and introduces Jane and Michael to some delightful people and experiences.

Mary Poppins returns to the Banks family in a rocket and involves the Banks children in more magical adventures including those with Peppermint Horses, the Marble Boy, and the Cat that Looked at the King.

Features twenty-six vignettes, one for each letter of the alphabet, starring Mary Poppins and other characters from the Mary Poppins novels.