Chrissie and her friends set out on a road trip for a final fling before one is shipped off to Vietnam. Along the way, bikers harass the foursome and cause an accident that throws Chrissie from the vehicle. The lawman who arrives on the scene kills one of the bikers and brings Chrissie's friends to the Hewitt homestead, where young Leatherface is learning the tools of terror.

Summer, 1984: 30 years after Duane captained the high school football team and Jacy was homecoming queen, this Texas town near Wichita Falls prepares for its centennial. Oil prices are down, banks are failing, and Duane's $12 million in debt. His wife Karla drinks too much, his children are always in trouble, and he tom-cats around with the wives of friends. Jacy's back in town, after a mildly successful acting career, life in Italy, and the death of her son. Folks assume Duane and Jacy will resume their high school romance. And Sonny is "tired in his mind," causing worries for his safety. Can these friends find equilibrium in middle age?