Den and Dart are separated when Den has to work at the quarry after Mavis is injured on the job, Thomas makes up an engine to take the blame for an accident he caused, James takes credit for Duck's idea to help with delays during the summer months, Thomas is fascinated by a strange popping sound coming from his flatbed, Thomas and Percy disagree on the best way to transport a giant balloon, Scruff gets repainted and looks for a new job, Thomas helps Edward get his own back on rude Gordon and Hiro and Henry keep on puffing even with bad coal.
—Anonymous