Pop Goes the Diesel


 * “Trucks/Cars are waiting in the Yard; Tackling them with ease'll, 'Show the world what I can do,' Gaily boasts the Diesel. In and out he creeps about, Like a big black weasel. When he pulls the wrong trucks/cars out – Pop goes the Diesel!”
 * ―Troublesome Trucks

Pop Goes the Diesel is the twelfth episode of the second series.