Mr Rails Never Fails
"Well, that's sorted out the blockage in me blowers!"
Season 1, Episode 3
Vital statistics
Air date 7/06/2006
Written by Diane Redmond
Directed by Brian Mitchell
Episode guide
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Sir Clunkalot Brooklyn and Rocky Two-Shoes
Mr Rails Never Fails is the third episode of Underground Ernie. It originally aired on CBeebies on 7th June 2006.


A surprise party is being held to celebrate Mr Rails' 25th anniversary of working for International Underground, but Ernie has a very bad cold and has to leave work early, leaving Millie in charge of organising the party. At first, everything seems to be going well, as Mr Rails has been kept busy at the workshop, but party supplies have been delivered to the wrong places, and Millie is worried they won't be ready in time for the party.

Fortunately, everything is resolved quickly, and the party is a resounding success. Ernie recovers enough to attend the party and deliver a thank you speech for Mr Rails, which he deeply appreciates.

That night, the trains all talk about the party's success, while Bakerloo and Victoria decide that Mr Rails never fails, as well as Ernie, Millie, and them.




  • First appearance of Dr Hart


  • In the exterior shot of the control tower, Millie is shown to be sitting down, but when the scene cuts to inside the control tower, she's nowhere to be seen.
  • Victoria and Jubilee's carriages are missing in the close-ups of them at the party.
  • When Jubilee asks "Millie, where's Ernie?" Circle is nowhere to be seen in her shed.


Merchandise Gallery

Series 1
Pop DecoySir ClunkalotMr Rails Never FailsBrooklyn and Rocky Two-ShoesPulling TogetherCaught Purple HandedErnie's Big TripFinders KeepersThe Magician's AssistantCover StoryMillie's Dream DayMr Movie JonesSummer BreezeRunning LateLight At The End Of The TunnelThe Wreck Of Sea Shell BayCatnappedMonster MysteryBon AppetitA Change Is As Good As A RestElementary, My Dear Bakerloo!The Magic LampHow Great The ArtThe Mayor's VisitTechno TroubleSnow Go
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