It is now twenty years after the original battle with the space aliens. Earth has replicated lots of the alien technology, including anti-gravity, cold fusion and force fields. And for the sake of Hollywood marketing the movie all over the world, there is now some type of world government. Many ethnicities get involved including Chinese (money to made there) and African (not so much money to be made, but PC cred to be had).
As in the Glorious Patriarch’s favorite TV show, there is a mood base meant to intercept aliens as they approach Earth. Why the space aliens would not just go around the Moon, nobody ever says, but still there it is. The Moon base provides the means to introduce characters. So there is the bad boy pilot (the Hensworth that is not Thor), the Chinese base commander, and his really cute pilot niece.
A recurring theme is the we are women pilots and we don’t take no shit attitude. That is getting kind of old by now. It is fine to look at pretty women, but that attitude thing just ruins it. And yes, there is a woman President, who displays her own version of that attitude.
President Lonestar is back, however he is of course now Ex-President. He is not in the best of shape, and is cared for by his really hot daughter. Naturally enough, she is an ex-pilot, one that has to display the above mentioned attitude from time to time in order to establish her cred.
So on with the plot. It seems that the space aliens have changed M.O. in twenty years. Instead of generally raping a planet, they now drill a hole to the molten core. So a big alien ship comes are starts doing just that. I don’t know exactly why the aliens would need a radioactive iron nickel core so badly, when they have antigravity drive, cold fusion and force fields, but for some odd reason they do. Then it is established that when they do get to the core, the Earth will end. So this sets up the mechanism for creating tension. It is unclear why the Earth would be doomed at this exact point, but movies need to be made, and tickets sold.
Anyway, the heroes figure out a way to save the Earth, and everybody is happy. This movie contains an ideal mixture of good looking women, men heroes, women heroes, action, international elements and computer generated imagery to make lots of money from its release in all parts of the world