In "Mary Poppins Returns," Michael Banks (Ben Whishaw) - just a child when Mary Poppins first visited 17 Cherry Tree Lane - is now a grown man raising his children Annabel (Pixie Davies), John (Nathanael Saleh) and Georgie (Joel Dawson) with help from his sister Jane (Emily Mortimer). Times are tough in Depression-era London but the winds begin to change and the enigmatic governess, whose unique magical skills can turn any ordinary task into a fantastic adventure, enters the lives of the Banks family once again, having not aged a single day. Teaming up with an old friend, Jack, they take the Banks children on a series of whimsical adventures, encountering colorful characters like Mary's eccentric Cousin Topsy (Streep), Jack's lovable band of leeries and bank executives William Weatherall Wilkins (Colin Firth) and Mr. Dawes Jr. (Van Dyke) - bringing life, love and laughter back into the home.