Koko and Brewster try for the Buddy Badge. To earn the badge they must learn to trust each other, as they have to direct one another while the other has their eyes closed. Koko has a hard time trusting Brewster, but when she realizes that they are indeed best buddies, she starts to trust him.
click here to see where to watch or .
Ready to Watch Chuggington Badge Quest, Season 1, Episode 16?