Troto is a happy little car who likes to go places. One day after a long drive, he arrives in Cactusville, where he meets some big trucks. But when those big trucks laugh at how small Troto is, Troto doesn't feel very happy anymore, so he challenges them to a race to show them just what a little car can do. After Troto wins the race, the trucks apologize, and little Troto drives off into the sunset, casting a big shadow.