In the midst of chases, fights and shootings, three undercover agents set out to break up a gang of gangsters and save a famous scientist who had been kidnapped. It was the first in a series of films starring "The Superagents," which although in this case were called Centaur (Victor Bo), Apollo (Ricardo Bauleo) and Hercules (Julio De Grazia), were later known as Dolphin, Jaws and Mojarrita, respectively.