Thomas & Friends (1984)

S7E16 The Runaway Elephant

A new park is under construction along the Little Engines' railway, and the final touch is a grand statue of an elephant, leading to its name: "Elephant Park." Duncan, as always, is eager to finish quickly. After completing his tasks ahead of the other engines, the Fat Controller assigns him to transport the elephant to the park. However, in his haste, Duncan neglects to wait for the brakevan and soon finds himself racing down the tracks with the hefty cargo. Can he manage to halt before disaster strikes?