What would happen if humans recovered a crashed alien spacecraft? What could we learn from it? Using data gleaned from years of UFO sightings, cutting-edge animation and reverse engineering, This documentary recreates a typical ship. Our experts show us what's "under the hood" of alien craft. At first inspection, the technology seems crazy, but according to our experts, nothing is beyond the realm of possibility. Amazingly, many of these "science fiction" devises are based on real science. And many have human-designed counterparts right here on Earth.