Living in Llanuwchllyn where their father, Owain Owain, is employed as the first full-time head of Glan-llyn, the Urdd Gobaith Cymru camp, Geraint and Robin attend the local school (Ysgol O M Edwards), navigate the river in matching shirts, cycle the lanes and play football, the game accommodating their sister Nia with her own ball. They visit the Eisteddfod in Bala, and Llyn Celyn, the reservoir created by flooding the Tryweryn Valley, and baby Gwenllian joins the family.