Oscar discovers that a Norwegian band has made a remix of a song by an artist that “belonged to their production company” 30 years ago. He has promised his girlfriend Natalia a trip to Miami. But the little information he obtains places the whereabouts of the former singer somewhere in the mountains of Córdoba. He invents a story to deceive Natalia, and they head towards those inhospitable places in their old convertible.

This time, the "exterminators" must confront a secret organization conducting a diabolical experiment: transforming a fighter into an indestructible man through a series of bionic implants. To investigate their scheme, Colonel Morris assigns Guillermo and Héctor Echavarria, but they are joined by Nico, an orphaned boy eager to become part of the Eagle Command.