Mae Sid yn gi bach arbennig iawn, ac mae'i berchennog, Geraint, yn dwlu arno. Mae Mam a Dad yn dwlu arno hefyd, ond dydyn nhw ddim yn hapus wrth iddo gwrso'i bêl drwy'r llysiau a'r blodau. Mae'n ddiwrnod Sioe Gŵn Cwmhendy heddiw ac mae Sid yn edrych ar ei orau. Beth allai fynd o'i le?
Sid is a very special little dog and his owner, Geraint, loves him to bits. Mum and Dad love him too, but they're not very happy when he chases his ball through their leeks and daffodils. But today it's the Cwmhendy Dog Show and Sid is looking his very best. What can possibly go wrong?
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