Generosity and nobility are good qualities, but the ability to turn water into fuel is valued much more! The American professor wanted the best: to give the Vietnamese people, with whom he once fought, a unique source of cheap fuel and thereby atone for his guilt. But you can’t hide an sew in a bag: heavily armed men in camouflage are already rushing into the cave-laboratory, lost in the impenetrable jungle. They understand that a peaceful invention can easily become a weapon of mass terror. The Russian special services also became interested in the new development. Both have the same task: remove witnesses, steal the scientist and the drawings of the device...