Trottie and the Farmyard Mystery is a story of a brave collie dog called Trottie who has to leave the home he knew as a pup to set sail on a new adventure. Along the way he meets the Foleys, who take him in and set him to work on their small farm in the west of Ireland. All is well in Trottie's life until one day a baby chick is snatched from the hen house.
Trottie, being the sheepdog that he was, decided to find out who carried out this awful deed, and this set about a chain of events that was to send his life on a new and interesting path.