It's supercalifragilisticexpialidocious! High above the dawn clouds over London, "practically perfect" Mary Poppins floats out of the sky and into the lives of two playfully mischeivious children. With the help of a carefree chimney sweep named Bert, the spirited nanny makes every chore a game and every day a "jolly holiday." But, after they leap into a imaginative world of a sidewalk chalk drawing, visit a hilarious floating tea party, and join a rooftop song and dance, it may take more than "A Spoonful Of Sugar" to cheer up the children's precise and disapproving father!