New York City is always in need of miracles, and this Christmas is no exception. Thank heavens the divinely inspired, if slightly dizzy trio -- Shirley, Goodness, and Mercy -- have winged in to answer three Christmas wishes and teach a few lessons along the way. As usual, they've come up with three deserving souls who are about to discover that with this crew, when you wish upon a star, you get a lot more than a pretty song.