Chuggington (2008)

Season 2: Episode 14

Eddie and Hodge have cleaned the sludge out of the chugwash. Now they’re going to refill the chugwash soap, then clean the underground tunnels using the Scrub-A-Chug – a fantastic piece of rolling stock with brushes that cleans the ceiling of the tunnel. Their work is interrupted when they get called away on an emergency.