A Welsh adaptation of the well-loved Roald Dahl classic story of Danny and his father who outwit their greedy, rich neighbour, Mr Victor Hazell. Danny thinks his dad is the most marvellous and exciting father a boy could wish for. Life is happy and peaceful in their gipsy caravan, until one day Danny discovers his dad has been breaking the law.

• Cover
• Gan Gyflwyno
• Title
• Copyright
• Cynnwys
• 1 Y Garej Betrol
• 2 Y Cawr Mawr Mwyn
• 3 Ceir a Barcutiaid a Balwnau Tân
• 4 Cyfrinach Fawr Dywyll Fy Nhad
• 5 Y Dulliau Cyfrinachol
• 6 Mr Victor Hazell
• 7 Yr Austin Bach
• 8 Y Pydew
• 9 Doctor Spencer
• 10 Y Criw Saethu Mawr
• 11 Huwcyn Cwsg
• 12 Dydd Iau a’r Ysgol
• 13 Dydd Gwener
• 14 I Mewn i’r Goedwig
• 15 Y Cipar
• 16 Pencampwr y Byd
• 17 Y Tacsi
• 18 Cyrraedd Adref
• 19 Cysga di, fy Mhlentyn Tlws
• 20 Hwyl Fawr, Mr Hazell
• 21 Syrpréis Doctor Spencer
• 22 Fy Nhad
• Neges