Thomas and Percy are best friends with a special best friends' whistle. When Thomas is given the job of pulling a brass band - a job that he knows Percy is desperate to do - he decides to keep the news from his friend. Thomas spends the day avoiding Percy. When Percy finally learns the truth, he is disappointed in Thomas. Thomas feels terrible for not telling his best friend and, after negotiating with Sir Topham Hatt, works out a plan for Percy to pull the band after all. When the Sodor Wishing Tree is damaged in a storm, Henry fears that the special woodsmen he is told to collect have arrived to chop it down. He blocks all tracks leading to the tree to stop the woodsmen. Henry soon learns that the woodsmen are there to save the tree, but if they can't get to the tree it will have to be chopped down after all! Henry realizes his mistake and works hard to give the woodsmen access to the tree.