One of the reasons Mary Poppins has become such a timeless classic is because it's a story about finding joy even in the worst of times, and the sequel does a great job encapsulating that same message. After losing his wife, a grown-up Michael Banks is at his wits' end when he is on the verge of losing his family home. While it seems like Mary Poppins has returned to take care of his children, she has actually come to remind Michael and Jane of how carefree they used to be when they were children and reinstall hope in their lives.