Diego and his friends spend the summer at the camp run by Pompilio Calderón, an eccentric explorer. There they find a medallion that belonged to Pola, Diego's grandmother. Following in her footsteps, they will experience incredible adventures in a parallel dimension as they try to save the planet from disaster.

In a Mexican border town plagued by neglect, corruption, and violence, a frustrated teacher tries an unorthodox new method to break through his students’ apathy and unlock their curiosity, their potential... and perhaps even their genius.