Children's spy drama with high school kids Blane, Daisy and Rose. Daisy turns green with envy when she and Rose go head-to-head in a modelling competition while investigating a dangerous new fashion craze. Britain's kids are going mad for the fashion designs of Lorenzo Ferrago. But when green logos start appearing on their skin, the school spies take to the catwalk to investigate the designer, deciding to infiltrate the House of Ferrago by posing as models.