After her own acting career in Hollywood failed to take off, Trina Vega returns to her old high school, the prestigious Hollywood Arts High School. However, fate takes an unexpected turn when she suddenly starts working there as a — actually unqualified — substitute teacher. While trying to expand her own network in the entertainment industry, she regularly clashes with the new generation of talented students, yet in her own chaotic and wacky way, she manages to inspire and guide them toward stardom.