Thomas, Percy and the Post Train - UK/Thomas, Percy and the Mail Train - US is the twelfth episode ever made in Season 3.


Thomas and Percy have the important job of transporting the post, but they are afraid that Harold will start stealing their traffic. Their fears, however, are dispelled after Thomas takes an important visitor home and bad weather grounds Harold.


  • When Percy goes under the bridge at the beginning, the end of the track is visible.

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