After I Am Number Four came Generation One . . .It's a year since John Smith and the Lorien Garde helped defeat the Mogadorian invasion of Earth.Now all over the planet teenagers are developing new powers - new Legacies.But this terrifies everyone else. Those with Legacies are forced to register themselves. They are cast out of families. Hunted. Some are murdered.So the Garde create an Academy. A place where the gifted may come and learn. They will be trained to use their powers to help protect humankind.But some believe there's a better use of their talents. They have other plans. And they don't care who dies to bring them about . . .