This week, Jo meets the Porter Family. With a tantruming daughter and two shouting parents, it's overwhelming.
Maddy rules the roost with a heavy hand. She very explosive and would throw temper tantrums like a toddler. The whole family is treading on eggshells. Mum treats her like a toddler choosing her clothes, helping her shower, brushing her teeth and cutting up her food for her. She even has to be bribed to take a shower.
Her mum Hayley's first child, Jake from a previous marriage died at just 23 months old. Supernanny soon realises that this is why Hayley’s been wrapping Maddy up in cotton wool.
Tantrums can last for hours with mum being the main focus of Maddy's outbursts and physical aggression. Biting and scratching is a commonplace and mum is the main victim.
Outings often have to be stopped before they've even got out the car as Maddy's tantrums are so extreme and seven-year-old Harry is beginning to copy her bad behavior.
The parents Hayley and Merril take the kids out just to show off that they're status symbols as parents and if the kids refused then they'll get in trouble.
Can Supernanny tame the tantrums or is this one battle of the wills which can't be won?
Full UK episode on YouTube