Sam and Sadie meet in a hospital in 1987. Sadie is visiting her sister, Sam is recovering from a car crash. The days and months are long there, but playing together brings joy, escape, fierce competition -- and a special friendship. Then all too soon that time is over, and they must return to their normal lives. When the pair spot each other eight years later in a crowded train station, they are catapulted back to that moment. The spark is immediate, and together they get to work on what they love - creating virtual worlds to delight, challenge and immerse, finding an intimacy in the digital realm that eludes them in their real lives. Their collaborations make them superstars. This is the story of the perfect worlds Sadie and Sam build, the imperfect world they live in, and of everything that comes after success: Money. Fame. Duplicity. Tragedy.