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.

Mary Poppins is likely the most exciting nanny England, and the world, has ever seen. The Banks family has no idea what's in store for them when she blows in one autumn evening. Soon, the children are having tea on the ceiling, flying around the world in a minute, and secretly watching as their unusual nanny pastes gold paper stars to the sky.

After Mary Poppins departed London, Jane and Michael Banks grew up into loving and responsible adults. When Michael becomes a single father of three children after the death of his wife, Mary Poppins revisits the Cherry Tree Lane home again to try to help Michael and his family cope and move beyond their grief. Time passes quickly for most normal mortals. Mary Poppins has never been normal. Although it's now the 1930s, she looks exactly the same....