Overview: Jo takes on the four unruly young Collins children, who run the house by mob rule. She finds herself particularly up against it with nine-year-old Ben and four-year-old Joseph, who are not only aggressive and destructive, but are determined to be the first children to prove that Supernanny can fail! After witnessing everything from regular use of the F word to spitting and smashing up the house, Jo introduces her new zero-tolerance regime, under which all bad behaviour is punished. The children are separated into different Naughty Zones when they misbehave, and have toys and any luxury items confiscated. She encounters much resistance from the kids, and tears from mum and dad, and even has to teach dad how to better handle his children using a bit of imaginative role-playing.