Sadly, the little house on Cherry Tree Lane and the grown-up siblings, Michael and Jane Banks, are facing hard times, during the worldwide 1930s Great Slump. However--against the backdrop of a terrible tragedy and imminent foreclosure--once more, the beloved and nearly perfect nanny, Mary Poppins, descends from the sky to lend a hand. Along with the cheerfully resourceful lamplighter, Jack, the Banks are about to embark on a magical adventure, and what is more exciting, they will even get to find happiness again. Is there anything that a dash of optimism can't cure?