Chuggington is an international computer-animated television series for children produced by Ludorum plc and broadcast in 137 territories throughout the world including the
BBC children's channel CBeebies and the US children's channel Playhouse Disney . The series is set in the fictional town of Chuggington, and follows the adventures of three young trainee locomotives (or "chuggers" as they are called in the show). Two are diesels and one (Koko) is electric. Other engine characters also appear in the episodes.