The Magician's Assistant

CGI animation. Ernie, controller of International Underground, is always on hand to help his friends and to get passengers to their destinations. He is helped by trains Victoria, Bakerloo, Circle, Jubilee and the twins Hammersmith and City. Paris is visiting again, this time with Maestro the Magician on board. He performs a trick, with Millie as his assistant. The trains think his trick is amazing, and that Millie is a brilliant assistant.