Infiltrating a burial sanctuary hidden in a cave deep in the Rocky Mountains, two young men break an ancient spell, setting off a chain of catastrophic events that threaten the very existence of humanity. In this cave, next to the remains of strange white-skinned Indians, many gold plates with inscriptions in an unknown language are kept, as well as the sacred totem of this people - the skull of a saber-toothed tiger. Inside it is filled with an unknown substance, which, once released, instantly begins to absorb the surrounding matter, turning it into dust, and this process cannot be stopped. The Sigma special squad is joining in to solve this problem, which is mortally dangerous for all life on Earth...