In a famous amusement park, a group of young people is enjoying a day full of adrenaline and fun, unaware that something strange is brewing behind the scenes. The park, which is in danger of being closed down, serves as the perfect backdrop for some supernatural forces and an evil villain to plot to seize the fun and turn it into total chaos. The wicked promoter of the park, a mad scientist named Abner Devereaux, has created a series of robots and mechanical creatures that feed off the energy of the visitors' enjoyment. But everything changes when the iconic rock band KISS arrives at the park to put on a show.
As the four band members, each with their special powers, try to entertain the crowd, they find themselves embroiled in a plot to save the park from the clutches of evil. Amid explosive musical numbers and special effects of the era, the heroes face Devereaux's lethal machines, all while showcasing their unique personalities and distinctive style.
As the story progresses, the members of KISS realize that their music is the only antidote to the threat looming over the park. With a spectacular climax filled with action, rock and roll, and friendship, the band learns the true meaning of unity and the power of music in the face of adversity, ultimately ensuring that everyone can once again enjoy the park.