Thomas & Friends: All Engines Go!
Overview
Diesel tells Nia that using her special whistle to find Farmer McColl's sheep isn't fair. So she tries not to use it, even though it is the only thing that can save the delivery.
Diesel tells Nia that using her special whistle to find Farmer McColl's sheep isn't fair. So she tries not to use it, even though it is the only thing that can save the delivery.