Percy complains that he is overworked, though the others are unsympathetic. While working at the Coal Mine, some trucks escape from him and they crash inside the mine-shaft, which causes the entire mine to collapse. Percy and his crew try to escape, but are buried underneath coal. Luckily, they are saved by a canvas barrier.

Henry refuses to believe in ghosts, until he and his crew encounter a series of spooky events during the night. The trucks tease him, but later down the old line, they become spooked too. In their fright, the trucks surge forward and plunge into a ravine. Henry soon realises that the "ghostly figure" is actually Old Bailey, a friendly fogman.