'Sdim st锚m yn codi o dr锚n stem Porthmadog - felly ffwrdd a Harri i helpu Owain a gyrrwr y tr锚n. The Steam Train at Porthmadog isn't working. Harri goes to help Owain and the train driver.
4 o fisoedd ar 么l i wylio
14 o funudau
Gweld holl benodau Help Llaw
