Tells the story of a young actress named Peggy Sawyer. Peggy arrives to the audition late and misses her chance to audition for a musical. Luckily, she catches the eye of the famous director, Julian Marsh, and he gives Peggy her big break.
However, the show's aging leading lady, Dorothy Brock, quickly grows to dislike Peggy. On opening night, Ms. Brock falls and breaks her ankle. Panic spreads through the company, as the show is doomed for closure, until it is suggested that Peggy take the roll. In only thirty-six hours, Peggy learns twenty-five pages, six songs and ten dance numbers to become a star.