Thomas Track Master is the new way to play with Thomas & Friends trains! The Troublesome Truck is busy collecting coal for the steam engines. Watch as coal travels up the mine conveyor belt.When an engine enters the mine the coal hopper will rumble and shake and the empty truck will magically fill with coal. Includes Troublesome Truck.Track Master toys are fully compatible with Motor Road & Rail via a special adapter track which comes free with all Track Master sets!Engine not included.