Honk your horns; Toot! Toot! It's the traintastic world of Chuggington where eager engines Wilson, Koko, and Brewster are learning to become working trains. For the three young chuggers there's always adventure, fun, and excitement on the rails as they get into a bit of a pickle in a deserted town and the safari park, help each other out of trouble, and discover the repair shed is not such a scary place after all.