The lightning are electrical discharges of billion of watts produced in certain weather conditions and occur in microseconds. With the meteorologist Oscar Van der Veld from the UPC, Quèquicom pursues lightning during a storm with a high-speed camera. This procedure leads to study in detail the behavior of lightning and to measure their strong magnetic fields and the emission of X and gamma radiation. But how lightning are generated? It is explained in the studio by a model and a "virtual carpet" depicting the positively charged ground following the cloud until finally jumps the beam. The program also shows the plasma in a vacuum chamber and explanis that the light beam is the death certificate of the plasma, the fourth state of matter. In addition the technology, tries to “tame” lightning: the program visit a high technology factory of lightning rod and and a steel plant that uses plasma cutting.