A teenage girl named Corinne Burns quits her job and forms a punk band with her sister Tracy and cousin Jessica after being inspired by a disgruntled TV news reporter's disparaging segment. They name their band The Stains and soon get the opportunity to tour with two other bands: a washed-up metal act called The Metal Corpses, led by the cynical veteran Lou Corpse, and a British punk band called The Looters, fronted by charismatic yet abrasive Billy. As the tour progresses, The Stains' initially rocky relationship with their tour mates intensifies, marked by tension and rivalry. Corinne adopts a unique look and a defiant message, which captures the imagination of young female fans across the country, despite their poor musical skills.

The Stains' popularity skyrockets as audiences resonate with Corinne's bold image and unapologetic stance. Media coverage amplifies their influence, leading to a devoted following of fans called "Skunks," who emulate their style. As their fame grows, internal struggles and conflicting motives arise within the group. Corinne faces the pressures of fame alongside jealousy and animosity from her tour companions, particularly from Billy. Tensions erupt, leading to a climax where personal ambitions, authenticity, and the corrosive nature of fame collide. The film explores themes of rebellion, exploitation, and the fleeting nature of success in the rock-and-roll world, leaving Corinne and The Stains at a critical juncture where they must confront their true aspirations.