Jonathan Nation

When her family is gunned down in cold blood, a young girl convinces a bounty hunter to train her as a gunfighter so she can seek vengeance with a six-shooter.

Two years after the Martian invasion, George Herbert's worst fears are realized: The Aliens have returned. As a second wave of Martian walkers lay waste to what's left of Earth, an alliance of military forces prepares a daring attack on the Red Planet itself. Once again, the future of mankind hangs in the balance.