CGI animation. Ernie, controller of International Underground, is on hand to help his friends and to get passengers to their destinations safely. He is helped by trains Victoria, Bakerloo, Circle, Jubilee, the twins Hammersmith and City, and Ernie's friends Millie and Mr Rails. Brooklyn brings a piece of abstract art back from New York, but no-one wants it on their platform. No-one is sure what to do with it, but Brooklyn's eye is soon caught by a squashed wheelbarrow. Show less