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. The three trainees are thrilled to spend a day with Action Chugger, who makes flying look easy, but Wilson discovers it isn't so simple after all! Dunbar's exciting new training device causes a storm. Can Brewster overcome his fear to win his rescue badge?