Old-timer Sioni leaves his ranch to his grandson, Waldo Gellilyfdy. But Waldo is a stranger to the Wild West - a greenhorn, a tenderfoot, the kind of person who receives a raucous welcome from the hardened cowboys. A Welsh adaptation of Lucky Luke: Le Pied-tendre. The 19th century was a century of migration to the American Wild West. The welcome awaiting the newcomers was somewhat mischievous - the kind of welcome which would harden the immigrant's resolve to stay or give him enough reason to head back home. When the well-heeled incomer Waldo Gellilyfdy finds himself in the West ready to inherit his grandfather's homestead, he's determined that no welcoming party will stop him from beginning a new life amongst the cowboys. Lewsyn Lwcus is engaged as Waldo’s special fixer, with plenty of advice and a helping hand to overcome the dastardly conspiracy plotted by Jacs Cae Cul. Mae'r hen Sioni yn gadael ei ransh i'w ŵyr, Waldo Gellilyfdy, ond dieithryn i'r Gorllewin Gwyllt yw'r bonheddwr Waldo - llo cors â thraed wadin, y math o berson mae'r cowbois caled yn rhoi croeso anghynnes iddo. Addasiad o Lucky Luke: Le Pied-tendre.