Five years after giving up his powers, Leo San Juan is accompanied by Nando on his way to Veracruz, when an ancient local curse strikes. This time Leo has no powers, no friends, no time, and apparently no opportunity.

The people of a small town called "La Esperanza" in Mexico, find themselves in the need to build a steam train with their own hands, to prevent the town from falling into disgrace and oblivion.

La pluma de Moctezuma viene de visita a México, y harán que se quede aquí, aunque todo salga mal.

Leo debe contar con la ayuda de sus amigos después de ser engañado por el Charro Negro, resultando una niña para ser arrojada al inframundo.