The 5 season of Chuggington was broadcast on CBeebies from lundi 18 mai 2015 to vendredi 29 mai 2015. It consists of 10 episodes, the first one is called "Kelly, chef d'intervention" and the last one "Fletch Shines".
Koko, Brewster and Wilson are three young, adventurous trainee "chuggers", learning about working on the railway in the town of Chuggington, with the help of the railway controller, Vee, the older engines, and their human friends.