THE TEXAS CHAINSAW MASSACRE

On August 18, 1973, five young adults – Erin Hardesty, her boyfriend Kemper, her brother Morgan, and their friends Andy and Pepper – are traveling to a concert after visiting Mexico to purchase marijuana. While driving through Texas, they pick up a traumatized hitchhiker walking in the middle of the road. She tells them they're going the wrong way and forces Kemper to stop the van. Speaking incoherently about "a bad man", she commits suicide with a revolver hidden in her dress.

The group finds a gas station hoping to contact the police. The store's proprietor, Luda Mae, tells them to meet Sheriff Hoyt at the Old Crawford Mill. Instead, they find Jedidiah, a young boy who says Hoyt is at home getting drunk. Erin and Kemper go through the woods to find his house, leaving Morgan, Andy, and Pepper at the mill with Jedidiah. They come across a plantation house, and Erin is allowed inside by Monty, an amputee, to call for help. Kemper goes inside to look for Erin, and is hit in the head with a sledgehammer by "Leatherface", who drags him into the basement.

Meanwhile, Hoyt arrives at the mill and takes possession of the hitchhiker's body. After Erin discovers that Kemper is missing, she and Andy return to Monty's house. There, Erin distracts Monty, while Andy searches for Kemper. After realizing that Andy is inside, Monty summons Leatherface from the basement with his cane and he attacks Andy with a chainsaw. Andy fends him off as Erin escapes. After a brief chase Leatherface catches up to Andy and saws off his left leg. Carrying Andy to the basement, Leatherface impales him on a meat hook. Erin returns to the mill, but before she and the others can leave, Hoyt arrives. He reassures them everything will be fine but when he finds marijuana on the dashboard, Hoyt then orders the three of them to get out of the van and get on the ground, and instructs Morgan to reenact the hitchhiker's suicide using her gun. Morgan attempts to shoot Hoyt, but the gun is unloaded. Hoyt handcuffs Morgan and drives him back to the house, beating him along the way and also taking the van's key with him.

Erin and Pepper manage to hot-wire the van but the wheels fall off. They are attacked by Leatherface, now wearing Kemper's face as a mask. While attempting to run, Pepper is killed by Leatherface. Erin runs and hides in a nearby trailer belonging to the "Tea Lady", an obese middle-aged woman, and Henrietta, a younger woman who gives her tea that has been drugged. Erin discovers that they have kidnapped the hitchhiker's baby, but passes out before she can escape. Erin wakes up at the house, surrounded by the Hewitt family: Leatherface, his mother Luda Mae, Hoyt, Monty, and Jedidiah.

In the basement, Erin finds Andy still hanging on the meat hook. When she can't lift him off the hook, Erin uses a knife to put him out of his misery. She then finds a wounded Morgan handcuffed in a bathtub and the two flee the basement as Leatherface gives chase. Jedidiah, who disagrees with his family's actions and who was forced by Luda Mae to stay out with their dogs, leads them out of the house and distracts Leatherface while they escape. Erin and Morgan find an abandoned shack in the woods, and barricade themselves inside. Leatherface breaks in and discovers Erin. Morgan attacks Leatherface, who hangs him from a chandelier by his handcuffs and kills him with the chainsaw. Erin escapes into the woods with Leatherface in pursuit. The chase continues into a slaughterhouse, where Erin attacks Leatherface with a meat cleaver and severs his right arm.

Erin runs outside and flags down a trucker, whom she tries to convince to drive away from the house the same way the hitchhiker did, but he stops to find help at the gas station. She sees Luda Mae & Hoyt talk to the trucker while Henrietta watches the baby. As Henrietta walks outside to give Luda Mae her raincoat, Erin sneaks the baby out of the eatery, and places her in Hoyt's car. She hot-wires the car and Hoyt tries to stop her, but she runs him over repeatedly until he is dead. Leatherface then appears in the road and slashes the car with his chainsaw, but Erin escapes with the baby. Two days later, two officers investigating the house are killed by Leatherface, and the case remains open.

Erin escapes from the Hewitt family and Leatherface after a violent confrontation, making it out of rural Texas alive.

The ending underscores survival at great personal cost, as Erin endures psychological and physical trauma to escape Leatherface and his family. Her final escape is both a release of tension and a bleak commentary on the randomness of survival in a world ruled by monstrous brutality. The film closes with a haunting reminder that the nightmare is rooted in real-world terror, not supernatural forces.