Underground Ernie

Underground Ernie is a British computer animated children's television series produced by Joella Productions in the United Kingdom on the BBC on both CBeebies and BBC Two.

Storyline
It is set in International Station, a fictional worldwide underground network, and focuses on the everyday adventures of Ernie, a friendly underground supervisor, Millie, his multilingual colleague, and Mr. Rails, the lovable maintenance man.

There is Bakerloo, Victoria, Circle, Jubilee and the twins, Hammersmith & City. From time to time they are joined by their friends from across the world including; Paris, Brooklyn, Moscow, Sydney and Osaka.