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In 2008, a team of international scientists explore a Mexican cave filled with giant crystals. In one of the deadliest environments on earth, without specialized suits and equipment, the scientists would die in minutes. Can they unlock the secrets of the huge crystals, despite the challenges?
In 2013 scientists return to dangerous deep caves in Naica, Mexico, with beautiful ancient crystal formations. But in order to study the crystals and extract samples of bacteria the scientists must descend the equivalent of a 5 story building, and that is only the start of the challenges!
