Thomas and Percy are upset to hear the mail-train they both drive will be replaced with airmail when the mail-boat is late to them, so try to save it by going at extra speed.
Britt Allcroft (television stories by)
(adaptation by)
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David Mitton (television stories by)
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Wilbert Awdry (based on the Railway Series by)
(as The Rev. W. Awdry)