Albie, the farmer's dog, wakes up one morning to find that his companion Nellie has disappeared. Where has she gone? They are normally always together by the fire in the kitchen, or playing in the garden and the surrounding fields. Albie's journey to find Nellie takes him through familiar and strange places, where he encounters a cast of characters. A Welsh translation.

Deffra Albi'r ci un bore a sylwi nad yw ei ffrind Neli wrth ei ochr. Ble mae hi? Mae'r ddau wastad gyda'i gilydd o flaen y stof gynnes yng nghegin y ffermdy, neu'n chwarae yn yr ardd a'r cae gerllaw. Wrth iddo chwilio amdani, mae Albi'n profi holl synau ac aroglau'r byd o'i gwmpas.