New mum Emily wants revenge on the stick-thin assistants who laugh at her post-baby tummy and post-baby budget. But frumpiness has its advantages when you're weilding a secret camera - and you're sending the damning footage straight to head office. Store manager Alix has a life-long love of the world of retail - the glitz, the glamour, the stockroom. Then she's fitted up by an ambitious assistant and secret shopping is the only way to keep her one passion alive. And rock widow Grazia can't leave behind the high life, despite her chronically low bank balance. The more she's buying - and spying - the less time she has to mourn her husband or her fair-weathered friends who've dumped her. They're Charlie's Shopping Angels, controlled by a mysterious figure who sends them assignments from hell - and the occasional one from heaven. But when they're sent to stitch up a doomed shop owned by Will, the angels begin to feel divided loyalties ...