The Radford household is in for a major upheaval. Sixth youngest Casper prepares to make the leap to secondary school. But the fear of school bullies, and being the smallest boy in the year, mean a major intervention is needed. And it seems Oscar is the one to give his younger brother the confidence boost he needs. Meanwhile, Noel is convinced Sue is hiding something from the family, so he and Sophie hatch a plan to get at the truth