In Southern California in the near future, an earthquake measuring 8.6 on the Richter scale leaves 80,000 people dead and many more homeless. People are looting businesses and gangs have taken over certain areas, as the police are overwhelmed. On the beaches, rival surfing gangs battle for supremacy and authorities have advised people living in the beach communities not to go outside, as a state of anarchy exists. The “Surf Nazis,” led by Adolf and his girlfriend Eva live in a bunker on the beach and have knives attached to their surfboards. A Surf Nazi named Hook, whose right hand was bitten off by a shark, gets a metal welder to create a large hook for him to wear. Meanwhile Brutus, another Surf Nazi, practices using a crossbow gun that shoots arrows. Adolf proclaims himself the fuehrer of the new beach, announcing he will bring some order to the chaos on the beach. Adolf goes to a rival gang, “The Pipeliners,” suggesting they centralize power under the sign of the Nazi swastika, but one of the Pipeliner leaders responds that Adolf could not handle that much power. Meanwhile, Leroy Washington takes his mother, Eleanor Washington, to live at the Stardust Retirement Home. Mama Washington is not happy about being there, but starts up a poker game with some of the other residents. In the meantime, members of the Surf Nazis steal many items, taking them to a pawnshop for money. However, the books, tapes, compact discs and portable tape players they steal are thrown into a trashcan and burned. At the nursing home, one of the nurses reports that Mama Washington is not adjusting well. The head nurse, Nurse Withers, suggests she be sedated with pills in her coffee and food. Meanwhile, Mama Washington takes a chain saw and cuts branches off a tree that blocks the view from her bedroom window. In a biker bar, a patron named Wheels comes in with a manila envelope full of cash. Soon after, Eva comes into the bar demanding the money. Meanwhile, on the beach, members of the Asian surfing gang, the “Samurai Surfers,” try to start a fight with some Surf Nazis, but Adolf breaks it up. Later, Leroy walks on the beach after visiting his mother and stops a young Surf Nazi boy who has just stolen an old lady’s purse. Adolf apologizes for the boy, saying he is overeager due to the Nazi cause. Adolph chats with Leroy, but when he makes a derogatory comment about Leroy’s mother, Leroy grabs Adolf and shoves him to the ground. Other Nazi youth come to Adolf’s rescue and kill Leroy. Later, Mama Washington goes to identify her son’s body and prays to know who killed him. Meanwhile, Gregory, a Surf Nazi youth who goes by the name of Smeg, prepares to leave for a day of surfing. When his mother is surprised to realize he is still in the Surf Nazi gang, she tells him that the Neo-Nazi ideas of the gang are really suppressed anger toward their parents. Nonetheless, she gives him a few dollars to spend during the day. Later, in a pawnshop, Adolf tells the owner, Sly, that he brings in quality merchandize each day and he wants a larger payoff. The owner responds that he cannot do that, so Brutus takes a gold chain priced at $100, but leaves only one dollar for it. At the beach, Smeg tries to recruit two young girls to join the Surf Nazis, but they prefer the Pipeliners. Smeg responds that recently a black man was killed trying to stop the Surf Nazi takeover. At that moment, Mama Washington walks on the pier and overhears their conversation. She grabs Smeg and pushes him against the wall. Later, when Adolf returns from surfing, he finds that one of the Nazi surfboards with an attached retractable switchblade has been burned. In response, the Surf Nazis close the beach to everyone but their own members. When a non-member tries to surf there, he is murdered. Later, the Surf Nazis burn a building and get into a rumble with two other people. Meanwhile, Mama Washington purchases a gun. Later that night, as Adolf and Eva have sex on the beach, members of the Samurai Surfers sneak up to attack them. However, Eva slits the throat of one of them while Adolf fends off another. Later, members of the Pipeliners attack the Surf Nazis’ bunker, throwing acid in the face of Brutus. However, Hook and Mengele, another Surf Nazi member, fight them off. When Brutus reports he is blind from of the acid, Adolf shoots an arrow through his chest, killing him.That night as the Surf Nazis sleep, Mama Washington throws a grenade into the bunker, killing Mengele. Eva and Adolf believe a rival biker gang is responsible and go looking for the culprits. When they see motorcycles in front of the retirement home, they investigate, but Mama Washington comes out holding a gun. Adolf and Eva ride away on motorcycles, and Mama Washington gives chase in a van. Adolf and Eva try to evade her in an oil field on the beach, hiding amidst the oil pumps and pipelines. Mama Washington tries to lure them out, yelling that she is responsible for all the bad things that have been happening to them. Adolf and Eva steal some surfboards and dash into the ocean. Mama Washington hijacks a speedboat and gives chase. The boat drives over Eva’s surfboard, decapitating her. Adolf throws a spear that kills the helmsman and Mama Washington takes the wheel. She shoots Adolf in the butt and he goes under in a wave. She assumes Adolf is dead, but when she gets to shore, he climbs into the boat and attacks her. Mama Washington puts her gun in Adolf’s mouth and pulls the trigger. He falls dead into the water. Mama Washington gets on a motorcycle and rides down the highway.