It tells the story of Sgt. Michael Nantz (a growly, grizzly Aaron Eckhart) who has a past (they always have something that went wrong) and has submitted his retirement, yet is pulled back in when a large legion of aliens storm Earth's atmosphere, ID4 style.
Of course, we find out the secret that Nantz is hiding, and how one of the soldiers in the squad resents Nantz for that mistake long ago, which is a misunderstanding, of course.
Anyway, the movie is just eh. Its a war film with aliens, really, and nothing more. The story is predictable, the characters are mostly uninteresting and the whole movie is drab and grainy. The battle scenes, however, are glorious and the effects are spectacular, and I like how they portray the aliens as simply an invading force to be defeated.
If you want to see alien battles, though, skip this and go straight to Independence Day. Its funnier, its more lively and Will Smith is a far better lead than Aaron Eckhart, at least in this type film.
However, R&B superstar Ne-Yo does play a decent role in this movie, so if you love you some Ne-Yo like I know you do, then by all means, partake.