Thomas, Percy and the Coal, retitled Double Trouble in American releases, is the first episode of the second series. It is based on the story of the same name from the Railway Series book More About Thomas the Tank Engine.
One beautiful morning on Sodor, when his paint sparkles in the sunshine, Thomas puffs happily along his branchline with Annie and Clarabel, feeling very pleased with himself. He arrives at Elsbridge station, and brags to Percy and Toby about having the best paintwork on Sodor. When they tell him they like their paint, Thomas disagrees and says that blue is the only colour for a really useful engine before he puffs away.
Later that day, Thomas is resting by the coal hopper when Percy arrives to fill up some trucks. Thomas decides to be cheeky, warning Percy of the trucks' antics and some unsafe buffers behind him. The trucks then push Percy into the buffers and the last truck passes the coal chute causing a pile of coal to bury Thomas and ruin his paintwork when he cries for help and begs to Percy to get him out; Percy thinks this is very funny, much to Thomas' fury. It takes so long to clean Thomas that Toby has to take Annie and Clarabel instead and pull his next train.
That night at the sheds, Thomas is grumpy with Percy and thinks he ruined his paint on purpose. As Toby interprets the argument a great joke, Percy then becomes cross with Thomas for thinking so, while they continue arguing for the rest of the night.