Now then, it's best - I think - to just accept that there is very, very, little plausible science to this save-the-planet movie. The format, and the story, have oft been done by Hollywood before so it's not top of the originality tree either - but it's still quite a watchable and well produced story of a group of Chinese trainees who must raise their game when they find themselves trying to save the infrastructure being built to help save the planet from terrorists. It's extremely perilous for them, their enemy is sophisticated and well entrenched. When the moon becomes unstable, it again falls... read the rest.