Have humans really seen crafts and beings from other planets? Or is there a perfectly reasonable explanation for these sightings? Featuring stories from Australia, New Zealand and around the world, Invasion Earth investigates the world's most intriguing UFO sightings to answer the age old question – are we alone?

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Ratings: TVMaze: No Rating
Released: October 9, 2014
Runtime: 60 min
AKA: UFO: Alien Invasion
Countries: United States
Companies: National Geographic Channel Pioneer Productions

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