On a hot summer day, a car is stuck in a traffic jam. The kids are sleepy in the backseat. They seem to feel something cool when they’re half awake. All of a sudden, they’re riding the waves with their feet on surfing boards, surfing in the gridlock. The streets in a big city are like rivers and their branches, and they’re racing each other. Cars, vans, trucks and buses are surging like sea waves. Suddenly, a super big wave comes and knocks them off their surfing boards! To their surprise, a bucket of water is splashed over the windshield. It turns out that their mom has driven the car into a car wash! It was just their imagination. They exchange a glance and smile.