Well this movie is leading up to the Terminator series.
Half robot, half human monsters running around killing each other.
Haven't you noticed that when the robots got here in the first one, they were the same colour as the Terminators? They can't change into cars because they're half human. ;o
The story is pretty much the same as the first one.
There is secret cool info that threatens to destroy the world in some kind of thing and the bad guys are after it.