Runaway Koko

Children's animation set in Chuggington, a special place where the trains talk, think and don't need drivers. Koko's speed booster malfunctions, and she speeds around Chuggington out of control. Chug Patrol get ready to rescue her with some strong nets, but even they can't stop Koko. Brewster has been crushing rocks and saves the day by dropping dust onto Koko, which clogs up her booster and finally brings her to a standstill.