Annie and Clarabel often complain when Thomas is going too slow, or too fast. Thomas is being teasing them that he runs late. In a hurry, he them in the yard. Whilst he is away, Annie and Clarabel unexpectedly become part of Caitlin's high-speed train when Charlie accidentally shunts them behind her coaches.

Diesel, Den, Dart and Sidney hide from Paxton as a joke, but Paxton takes the joke too seriously and thinks the diesels have all disappeared. Desperately, he searches around the island in search of a diesel.