The story unfolds over one lively day at a car wash in Los Angeles, capturing the vibrant interactions of the diverse employees and customers. The car wash crew, made up of colorful characters like the wisecracking ex-con Duane and eager young Kenny, navigates personal challenges while contending with eccentric clients. Among the customers are a wealthy man facing marital problems and a self-proclaimed "Fly" who believes he’s a superhero. The seemingly ordinary business setting becomes a stage for everyday struggles and dreams, as employees grapple not only with sudsy cars but also their aspirations and issues.

Through a series of comedic and poignant moments, the workers confront societal issues such as race, class, and gender. Utilizing humor and genuine emotion, they support each other amid occasional conflicts and chaos that test their camaraderie. As the sun sets, the day leaves them with a deeper sense of connection and resilience. Though life continues with its ups and downs, there is a prevailing sense of hope among the characters, underscoring the compromises and small victories that shape their lives.