This is an alternate cover edition - ASIN: B071ZXQWR5 Terror fills the galaxy as the outer colonies come under attack! Planets destroyed. Resistance forces crushed. All hope is lost. Zack Salvator just wants to graduate high school and live a simple life. But the invasion changes everything. He joins the Space Corps Marines, like his father before him, and embarks on a perilous journey in the mechanized infantry to save mankind from the Tarvaax—a vicious alien race that threatens to eliminate the scourge of humanity from the galaxy. Zack never thought of himself as a hero, but some heroes are forged, not born. He will learn if he has the metal to be a Marine. The odds are impossible. The alien technology is superior. Survival is unlikely. To save our species, it will take duty, honor, courage, and the pursuit of valor.