The story begins in Lubbock, Texas, where young musician Buddy Holly forms a band called The Crickets with his friends, drummer Jerry Allison and bassist Joe B. Mauldin. The trio struggles to find venues that will let them play rock 'n' roll music, but their determination pays off when they win a local talent contest. With their newfound confidence, they record a demo tape that catches the attention of a prominent record producer, leading to their first record deal. As their popularity grows, they embark on tours across the United States, captivating audiences with their energetic performances and pioneering sound. Despite mounting tensions and the rigorous demands of fame, Buddy remains steadfast in his musical vision.

Progressing further, the narrative follows Buddy's rise to national stardom and the internal and external challenges he faces along the way. Amid ongoing success, he continues to push boundaries by integrating innovative musical techniques and embracing new sounds. Conflicts with his bandmates and professional disagreements become inevitable as Buddy's ambitions grow. Interpersonal relationships are tested while Buddy also navigates a nascent romance that adds another layer of complexity to his life. Ultimately, the film captures not just his musical brilliance but also his indomitable spirit and unyielding quest for artistic authenticity, offering a vivid portrayal of a rock 'n' roll icon's formative years without delving into later life events.