One in ten children under the age of 16 in the UK is struggling - whether it's behavioural, emotional or clinical. Some are born with a problem, whilst for others it can come out of nowhere. Whatever their condition, more than half of these vulnerable children will go undiagnosed - their problems being put down simply, to bad behaviour. This new series follows a number of families from across the UK as they embark on a journey to understand their child's behaviour and learn to cope with it.