List server
Season
Season 1 Episode
- Season 1 Pop Decoy
- Season 1 Sir Clunkalot
- Season 1 Mr Rails Never Fails
- Season 1 Brooklyn and Rocky Two Shoes
- Season 1 Pulling Together
- Season 1 Elementary, My Dear Bakerloo
- Season 1 Brooklyn and Rocky Two-Shoes
- Season 1 Finders Keepers
- Season 1 The Magician's Assistant
- Season 1 Cover Story
- Season 1 Millie's Day Dream
- Season 1 Mr Movie Jones
- Season 1 Summer Breeze
- Season 1 Light at the End of the Tunnel
- Season 1 The Wreck of Sea Shell Bay
- Season 1 Catnapped
- Season 1 Monster Mystery
- Season 1 Bon Appetite
- Season 1 Elementary, My Dear Bakerloo!
- Season 1 The Magic Lamp
- Season 1 How Great The Art
- Season 1 The Mayor's Visit
- Season 1 Techno Trouble
- Season 1 Snow Go
Underground Ernie - Season 1 Episode 5 Pulling Together
4.00 12 minutes Ernie has a bad cold so he leaves Millie in charge of Mr Rails's surprise party plans
