Caitlin Decter is a typical teen - smart, pretty, and wired...but she's also blind. She undergoes an experimental procedure to regain her sight and the results are unexpected. She "sees" but not just the way we do - for her the world wide web is a riot of colours and shapes, its own dimension. While exploring it, she finds an "other" lurking there - and it finds her, seeing what she's seeing and learning as she learns.