It's time for the Chugger Championship - the race that all of Chuggington has been waiting for! Join Wilson, Brewster, and Koko as they set off, full-speed ahead, to win the race. Excitement along the rails ensues as the three young trainees get ready for an important test, invent a new contest, start a fun hobby, and learn to accept responsibility. They even discover that a true champion isn't always the one who crosses the finish line first.