Aria, the world traveler, travels to Spain as an exchange student with her dog Daisy. They stay with the García family and their son Tomás. They enter a fun contest from Tomás' school with the García family. Each family has to go to many places on the map. The family finishing first wins the game. Last year, the López family and the Rodríguez family were the top winners. Who will win this time? This book series introduces children to other cultures and educates them about the countries Aria visits.