I had watched this movie 3 years ago, but to be able to catch it again in Channel 5 yesterday, was a great joy to me. Frankly speaking, if i were to be back at 3 years ago, i won't be able to understand what the whole story is about, but now i totally understand. In this movie, NS-4 were replaced by NS-5 which seems to be evil and harmful to human beings. Anyway, i was totally crazy when the NS-4 said that, "the human is in danger" and they tried their best to protect these beings. This was a thrilling and nice movie for me. Hope that those who watched it too, will enjoy as much as i did. =)