The Mogadorian invasion has come to Earth, and they have all but won the battle for our planet. Their warships loom over our most populous cities – like New York City, Tokyo, Moscow, Beijing, and New Delhi – and no army will risk making a move against them. The Garde are all that stand in their way . . . but they are no longer alone in this fight. Human teens from across the globe, like John Smith’s best friend, Sam Goode, have begun to develop Legacies of their own.