When Charlie turns a cardboard box into a car, he can’t wait for Mama to be his first passenger–and she is happy to go along. He adjusts the mirror, checks to make sure there is enough gas, and reminds Mama to buckle up. Then off they go–rev rev vroom–on their adventure. There are places to visit and obstacles to avoid and even a traffic jam. When they are done, Mama is exhausted, but Charlie can’t wait to take her on another trip. Rev rev vroom!