Children's animation. Chuggington is a special place where the trains talk, think and don't need drivers. Ride along with young trainees Koko, Wilson and Brewster as they embark on new adventures. Wilson is helping Frostini as he creates a new flavour of ice cream for the mayor's banquet. When they discover the mayor's wife is allergic to cheese, Frostini realises he will have to come up with something else.