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“🎵Yo, ho, ho, and a bucket of prawns! The tiller spins..."
"And the captain yawns!🎵”
―Salty and the trucks

Salty's Secret is the first episode of the sixth series. It is the first Thomas episode to air in the new millennium, the first Thomas episode to air in the 21st century, and the first to feature Salty.


Salty is a new diesel who enjoys working near the sea. It is his first day working on Sodor and as the island is surrounded by the sea, he is hopeful he will be working near it. Naturally, he is disappointed when he is sent to work at the quarry to help Mavis, Bill and Ben with an important job for the Fat Controller. Bill and Ben think that they do not need help, or that Salty will be able to manage all of the trucks. However, when they see that Salty manages to win the trucks over with his tales and songs of the sea, they become rather jealous. But Salty still longs for the sea.

One night, Mavis, Bill and Ben see him alone outside. Bill and Ben call him names, but Mavis tries to comfort him. Salty wants to be near the sea, but he knows that the quarry work is important. And the next day, Salty tries to show Bill and Ben his secret with the trucks, which is singing a tune for the trucks to sing along with. Bill and Ben try singing a rhythm to get the trucks moving, but they cannot make them move the way Salty could.

Later, the Fat Controller arrives at the quarry, and is surprised to see that the job has been completed. Mavis tells him that they could not have done it without Salty. Luckily for him, there is no further need for him at the quarry, and he is finally transferred to Brendam Docks, which is his dream place to work. It is where he feels really useful, and he sorts out the trucks better than any other engine.




  • Going by production order, this is the second episode of the sixth series.
  • This was the first episode of many things:
  • Some scenes were recreated in the CGI Series for the seventeenth series episode, Away From the Sea.
  • The end of the scene where Salty says “The tiller spins...” is sped up.
  • Toad's scrap model from Escape can be seen in the first scene of this episode.


  • When Mavis first meets Salty, her happy face mask is missing its eyebrows.
  • When Salty sings "The tiller spins..." He can be seen rolling off the end of the set and studio equipment can be seen in the top left corner.
  • When Salty sings "Yo ho ho and a bucket of prawns," he is rolling towards one of the twins and there are three trucks behind him, but in the next shot, he is in a different part of the quarry, both twins appear behind him, he gains several more trucks, and the trucks in front of him disappear.
  • When the trucks sing "And the captain yawns!" all but one of them has wonky eyes, and the trucks are suddenly facing forwards.


In Other Languages

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Language Title
Chinese 塞尔缇的秘密
Danish Saltys Hemmelighed
Dutch Salty's Geheim
Hungarian Salty Titka
Italian Il Segreto di Salty
Japanese ソルティーのひみつ
Korean 솔티의 비밀
Norwegian Saltys Hemmelighet
Polish Sekret Sylwka
Romanian Secretul lui Salty
Russian Секрет Солти
Serbian Soltijeva Tajna
Slovak Saltyho Tajomstvo
Slovenian Slavkova Skrivnost
Swedish Saltys Hemlighet
Thai ซอลตี้ชอบทะเล
Welsh Cyfrinach y Disel Yn

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