Watch out for the avalanche, Thomas! Help Thomas down the snow-covered mountain in this exciting, interactive set inspired by the episode "Snow Tracks". Measures 15" tall and expands to 2 feet wide. Hear the wind howling as the engines ascend the mountain. When Thomas goes through the mountain, the peak lights up and the mountain rumbles as snowballs chase the engines down the mountainside! This action-packed set explores danger and adventure for Thomas in the world of Sodor. Includes snow-decorated Thomas, Percy, and 3 snowballs.