It's all change in Ormston, as two newcomers arrive and have an immediate and memorable impact on village life. Len and Linda are expecting their first foster child, a two-year-old boy called Nat. But Nat turns out to be a hard-as-nails 12-year-old who can't keep out of trouble. Len and Linda are disappointed, but throw everything into looking after the boy, only to quickly realize that fostering isn't going to be easy.