What happens when an ammunitions expert brings a baby green marine home for his own personal redneck? Sex. Lots and lots of sex. Three Day Passes explores the beginning of the relationship between Sargeant South, Private Main and Alex ''Rigger'' Roberts. Dick, Rock and Rigger spend their time and energy on the important things -- good beer, good sex, good friends and the occasional game of Truth of Dare, while dealing with the mundane (and not so mundane) complications of living the military life.