Twenty-three years ago, twelve strange children were born in England at exactly the same moment. Six years ago, they used their psychic powers in unison and accidentally flooded the world. Today, they live in and defend Whitechapel, perhaps the last real settlement in soggy London, from the evil machinations of one of their own - a "Freakangel" gone rogue. But when Mark, the bad seed, returns and forces his old friends to expand their consciousness...