From the back cover:
MORGAN'S WORLD
A high-gravity, low-oxygen planet where man was never meant to live. Nevertheless, Triumviratine Earth had chosen Morgan's World as a strategic location for a military outpost, and StarForce was assigned the task of taming this distant world. Yet for each moment of progress on a hostile planet a price must be paid, and Forcer Will Tollens had been part of that price.
Now his nephew, Lawrence, had come to Morgan's World to claim vengeance on whatever had left his uncle a useless, empty husk of a man. But what Lawrence Tollens didn't know was that Morgan's World had been waiting for him, waiting with a special purpose that could change his destiny and the future of mankind ...