From the beginning Mary Poppins was a great exception. When she left the Banks family in that highly unconventional but characteristic manner, sailing over the housetops in the wake of her umbrella, it was well understood that she would come back one fine day.

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, the unflappable nanny of the Banks children, is back again! It is a day like any other for Mary Poppins and the Banks family in Number Seventeen Cherry Tree Lane--until a telegram arrives with the momentous news that Miss Andrews, the Holy Terror, is coming to live in the house next door. The house has always been empty and so has become the treasure of Cherry Tree Lane--each neighbor has filled it with personal dreams. But now peace...

After a banker's children lose their nanny due to her frustration with them, a change in the wind blows in a magical nanny who matches the children's qualifications, but not those of their very proper father. As Mary Poppins helps the children magically explore the world around them, their father grows increasingly disapproving of her methods, and he must eventually deal with his own distance from his children.