Little Micilín is the smallest piglet on the Farm Tóin le Gaoth. When Micilín was born Angus had to take care of him and he became very fond of him. One evening all the piglets escaped from the farm, Angus goes after them and he finds them all except Micilín, he searches the orchard, the henhouse ... but he can’t find Micilín. Where is he anyway?