Thomas & Friends S19E06 - Very Important Sheep

One night, Percy's mail run takes longer than usual and thus he is running too late to pick up Farmer McColl's sheep for the Maithwaite spring fair. While collecting his train, he biffs into the cattle truck too hard causing it to collide with a rail and make a hole in it. Every time Percy stops along his journey, his sheep escape by running out of the hole and Thomas, Annie and Clarabel find the sheep all along the branch line.