Kai-Lan and her friends are going to have a Dragonboat Race at the Dragonboat Festival and are going to meet a real dragon after the race. When Rintoo and Kai-Lan come in last place at the first Dragonboat Race because Rintoo didn't listen to Ye-Ye's instructions and did not follow the peeking mice's drumbeat, he grumpily whacks the boat onto a gazebo's roof, causing it to have some difficulty to get it back down from up there. Kai-Lan needs your help to show Rintoo what to do when you feel very mad.