Both "Prometheus" and "At The Mountains of Madness" are stories of scientific exploration. More than that, they are about scientists attempting to unearth the truth behind life on earth. In "Prometheus," scientists in 2089 have linked up cave drawings from ancient cultures across the world that all point to one place in the stars that no primitive culture could have even seen, let alone know about. So, an expedition is made to this remote moon that can theoretically sustain life. The specific goal is to get contact with humanity's extraterrestrial creators, the Engineers. The film goes on to confront the religious ramifications this rendition of the Ancient Astronaut Theory holds. It shakes the very nature of existence as we know it. They find a mysterious structure on the moon and investigate to find evidence of an ancient civilization including a corpse of one of these engineers. Eventually it is discovered that the Engineers were killed by something mysterious to the scientists. After a storm isolates two of the members of the group, strange creatures begin to show themselves and with very malicious intent. It seems these Engineers were working on a sort of biological weapon through the creation of these beings, but it turned on them and caused their demise here. The creatures manage to destroy the majority of the crew, but one gets impregnated with a squid-like being. In the end, the squid becomes giant and gives birth to an all new horrific life form that threatens to be even more lethal yet. One of the Engineers is discovered who still lives and has been in a sleeping state all this time. He is reanimated and attempts to transport the creatures to Earth. The climax of the film involves ensuring that these creatures stay as far away from life on Earth as possible. Whatever the Engineers created life for, their creation here threatened the existence of anything else. Its isolation is crucial to the survival of everything. The goal is reached, but the one remaining scientist still has no answers about life on the planet.