Mary Poppins comes back on the end of a kite string, stays with the Banks family for a while, and then disappears on a merry-go-round horse.

A blast of wind, a house-rattling bang, and Mary Poppins arrives at Number Seventeen Cherry Tree Lane. Quicker than she can close her umbrella, she takes charge of the Banks children--Jane, Michael, and the twins--and she changes their lives forever.

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...

Michael and Jane Banks will never forget the magical moments of their childhood spent with Mary Poppins. When their practically perfect nanny returns to 17 Cherry Tree Lane to look after Michael's children, she brings the same joy and wonder to the next generation of the Banks family.