ATTACK OF THE PORTA POTTIES - RAY SOBRINO

The story is about a group of friends who enjoy the outdoors and are well trained in outdoor activities. They are exploring in a nearby mountain range when they come across a construction site being overrun by porta potties. They are using their skills to protect the world from an attack from potties infected with nuclear radiation from a nearby army base. The characters involved have historical references since it was based in the late 1940's early 1950's.