When Jo Frost meets Debbie and her daughters she's confronted by some of the most shocking behaviour she's ever seen. Debbie is a single mum who juggles two jobs with bringing up her three daughters, Bethany (5), Ruth (3) and Hannah (2). When Supernanny arrives, she's spat at and has things thrown at her - and mum doesn't do much to stop it. After laying down some household rules Supernanny adapts her famous naughty step into three 'naughty corners'. Then she teaches Debbie a 'roaming technique' to help mum regain control of the girls in public, before addressing bedtime with a strictly no-nonsense stay-in-bed technique - which eventually works after Ruth gets out a record 47 times. It all goes well at first, but then Ruth deliberately bangs mum's head against the kitchen door...