Ross Chapman is one of life's losers. So when he survives a point-blank shooting, dons a superhero costume and becomes a crime-busting vigilante, something strange is clearly going on. And Ross's transformation isn't the only odd thing happening in Cardiff. Time is distorting - around the city, some people are aging, dying and decomposing in a matter of minutes, while others are reverting to childhood. Sgt Andy Davidson knows he's out of his depth...