In this sci-fi adventure, nine alien youths from the planet Lorien are hiding on Earth after their planet was destroyed. The narrator, Number Seven, is on the run, learning about his powers (“Legacies”) while trying to uncover if John Smith (Number Four) will join them. But others are also coming out of hiding—and not all are friendly. As they navigate danger, betrayal and their secret mission, the remaining Lorien youth must decide who they can trust