Emma is getting ready to go partridgeberry picking with her grandparents when she hears a loud thump on the shed roof. Startled, she runs outside to tell her grandfather. Poppy T explains that the noise was caused by a horse chestnut falling from the tree behind the shed. Poppy T teaches Emma the game he used to play with chestnuts, and she decides to try it out for herself. Emma and Poppy T are joined in the shed by Thomas, Jeffrey, and their grandfathers. The battle to be conker champion is on!