Martín pasa los domingos en familia de la misma forma; sólo que esta vez quiere hacer algo diferente, y para lograrlo lo acompañará su perro Fubá. Juntos tendrán una increíble aventura recorriendo desiertos y nevadas montañas, enfrentándose a piratas y monstruos; hasta que extraña el hogar y decide volver a contarle a su familia la aventuras que ha tenido.
 
Martín spends Sundays with his family in the same way; only this time he wants to do something different, and to achieve it his dog Fubá will accompany him. Together they will have an incredible adventure traveling through deserts and snowy mountains, facing pirates and monsters; until he misses home and decides to tell his family again about the adventures he has had.