"James and Michelle find themselves in the Atlanta airport on a layover ... seemingly interminable delays draw them both to a mysterious flashing green light--and each other. Where James is passive, Michelle is anything but. And she quickly discovers that the flashing green light is actually ... a button. Which she presses ... Before they can figure up from down, strange, impossible things start happening: snowstorms form inside the B terminal; jungles sprout up in the C terminal; and earthquakes split the ground apart in between"--