Stafford is disappointed children do not cheer for him the way they do for Thomas, and discovers it's because he makes little noise. Thomas and Percy feel sorry for him and teach him some noises that steam engines make, and Stafford soon learns to replicate them. Things go awry when his noisiness causes confusion and delay with a task that requires quietness.

As the Blue Mountain Quarry is winding down for the night, Rheneas discovers a deer. Luke takes a liking to it, and wants to keep his new friend around. The others are not sure the quarry is the right place for an animal, but Luke is determined to prove them wrong.