Donncha O'Callaghan is back with another laugh-out-loud family story, written with Blue Peter Book Club author Karen Owen and illustrated by Jenny Taylor. When Finn, Emma, Dad and Mum participate in a family fun day to raise money for charity, their competitive nature is revealed!When the family discover that Dad's arch-rival is also competing in the family fun day, Dad is determined to win! With a welly-throwing competition, wacky races and a talent show to prepare for, the family are on a strict NO DOUGHNUTS diet and training regime.