Jack, Chloe and Demi, and Corey

Around a million children are being raised in step-families and it's not always plain sailing. Jack, Chloe and Demi have big problems with their stepdad, and the feeling is mutual, with mum Maria stuck in the middle. Five-year-old Corey has elevated temper tantrums to an Olympic standard and the decibel levels are wearing down everyone at home. But is Corey the worst offender?