Synopsis: "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." – quoted from this book's product page on Amazon.com as of 2017-07-07.