Diesel tells Fergus that the Fat Controller wants him to work at the Smelter's Yard instead of the Cement Works. Believing Devious Diesel's story, Fergus goes to the scary Smelter's Yard and ends up running away.
Thomas is disappointed when the other engines get to take children to the seaside and he has to collect ingredients for cakes and ice-creams. On top of that, Thomas has a need for speed after Emily calls him a slow coach.
Rusty's double-noted call is scorned by neighbors but enjoyed by visitors, like the brass band preparing for a concert on his line. But in his eagerness to show them around, he gets them stranded over a bridge, without anyone knowing.
Thomas is glum when he is asked to do jobs other than deliver toys and children to the toy-store's winter grand opening, but is determined to try to do it all when Henry and the other given the two jobs have trouble.
Rheneas' and Skarloey's friendship is put to the test when, eager to transport a stegosaurus-skeleton, Skarloey almost loses them the job by working over-eagerly and Rheneas proves himself and tries to carry the weight alone.
Thomas sees Neville, a new steam engine, with 'Arry and Bert, and starts a rumour that they are friends. The engines get so wrapped-up avoiding Neville that Thomas forgets to warn him about a broken bridge.
Dennis, the new diesel engine who claims to need help with many tasks, is lazy and angry when Thomas doesn't end up doing all the work for him with his free time. But he gets a new outlook on his work hard way when he derails himself.