Season 1
Underground Ernie
Episodes
Pop Decoy
Popstar Sam 7 is playing at the theatre and it's up to Jubilee to get him there.
Sir Clunkalot
No synopsis available.
Mr Rails Never Fails
Ernie dresses up in a suit of armour and gets stuck, before saving a maiden in distress.
Brooklyn and Rocky Two Shoes
No synopsis available.
Pulling Together
Ernie has a bad cold so he leaves Millie in charge of Mr Rails's surprise party plans
Elementary, My Dear Bakerloo
No synopsis available.
Brooklyn and Rocky Two-Shoes
The trains are excited to see their old friend Brooklyn, and US athlete Rocky Two Shoes.
Finders Keepers
No synopsis available.
The Magician's Assistant
Pippa's cat Patch disappears during a thunderstorm, and there are other strange goings-on.
Cover Story
No synopsis available.
Millie's Day Dream
A horticulturist brings a rare plant to the Underground that turns hands purple.
Mr Movie Jones
No synopsis available.
Summer Breeze
No synopsis available.
Light at the End of the Tunnel
No synopsis available.
The Wreck of Sea Shell Bay
No synopsis available.
Catnapped
No synopsis available.
Monster Mystery
No synopsis available.
Bon Appetite
No synopsis available.
Elementary, My Dear Bakerloo!
No synopsis available.
The Magic Lamp
No synopsis available.
How Great The Art
No synopsis available.
The Mayor's Visit
No synopsis available.
Techno Trouble
No synopsis available.
Snow Go
The trains are excited about the arrival of champion ice skaters Sasha and Natasha.
