Mass UFO sightings from the last 50 years fuel a global mystery in this docuseries featuring eyewitness accounts, expert interviews and new evidence.
We rank shows by quality, not popularity. Each genre has its own pool — the best title in each genre scores 100, so a great War film competes against other War films, not blockbusters. A masterpiece in a niche genre can crown its category even if most people haven't heard of it. Learn more →
