The Great Festival is coming to Sodor and the Fat Controller tells the engines what their jobs are for the day. Thomas, Percy, and Gordon are to be cleaned and repaired in the Engine Shed, and Thomas teases Gordon about tank engines not needing turntables after a strong wind blows Gordon round and round!

　　Thomas and James come to a rockfall at the quarry and Harold helps out by clearing the line.

　　Thomas then collects his trucks and fill up with water. Thomas thinks that he has enough puff to race Henry. But when Henry shoots by, Thomas thinks "Well, perhaps not"!

　　After collecting his trucks with Percy at the docks, Thomas takes Annie and Clarabel to the station to pick up passengers going to the festival.

　　Thomas then passes Harold at the airfield and races him to the festival, but Thomas stops to watch Terence herd some cows back into the field.

　　Thomas is on his way again. He sees some children on the bridge and tells them to go to the station so he can pick them up later.

　　After he and Harold build the rides and stalls for the festival, Thomas passes Edward, who is grumbling about pulling trucks instead of passengers. Tired of Edward's grumbling the trucks push him down the steep hill into a rock in a siding, much to Thomas's surprise!

　　Thomas and his friends then enjoy the music at the festival. Later that evening, Thomas arrives back at the sheds late after taking the passengers from the festival home. The Fat Controller is very pleased with the engine's work and tells them he can have a well earned rest.