Rosie & The Signal is a Potential Plotline episode.


Rosie teases Spencer with a train of coal trucks and tricks Dennis into staying in the shed all day. The two are furious, and when Rosie gets conceited about being asked to take a special to the junction they seize thier chance and warn her about fictional "backing signals". Rosie believes them, and Spencer catches her backing from a signal outside the junction, allowing them to get renvage on the small pink tank engine.

Featured Characters

  • Rosie
  • Dennis
  • Spencer
  • The Fat Controller (does not speak)
  • Billy (cameo)
  • Arthur (cameo)
  • Neville (cameo)
  • Molly (cameo)


  • First apperences of Billy, Arthur, Nevile, Spencer and Dennis' CGI faces.


  • Spencer isn't able to go on the branch line, so he shoudn't have been outside the Ffarquhar Sheds.
  • In a close-up of Rosie's wheels when she reverses from the signal, a wire is visible.
  • When Rosie says, "Stay in the shed today, Dennis. The Fat Controller will come and see you", her eyebows are missing.

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