Thomas is tapped to deliver a sealed, sweet-smelling boxcar. But when he loses the boxcar, Thomas and his friends must use their sense of smell to track it down again ...

After Thomas and Percy get spooked by a suspicious rumbling, the engines set off to figure out the secrets of the old mine inside Lookout Mountain.

...Engines Go! The vehicles decide to show their best selves by staying clean and sparkling for the Tidmouth Sheds open house, but they are confronted by sinkhole ...