Leon is a little Italian race car and Alex is a big and experienced monster truck. At first glance, they have nothing in common. They are of a completely different generation and live on opposite sides of the world. But when they both get an invitation to compete in the prestigious race, the Ultimate Challenge, their worlds suddenly collide. The two strike an unlikely partnership to try and win the race, but also, learn from each other along the way. This story is suitable for pre-school and early school children. With it, they will learn to appreciate their family and always strive to be the best they can be. Alongside Leon and Alex, young readers will learn to dream their wildest dreams, then be motivated to go and make them a reality.