As a CODA (Child of Deaf Adults), Ruby is the only hearing person in her deaf family. When the family's fishing business is threatened, Ruby finds herself torn between pursuing her love of music and her fear of abandoning her parents.
In 1965, passionate musician Glenn Holland takes a day job as a high school music teacher, convinced it's just a small obstacle on the road to his true calling: writing a historic opus. As the decades roll by with the composition unwritten but generations of students inspired through his teaching, Holland must redefine his life's purpose.
After failing to be admitted into the OSESP Orchestra, a talented violinist is forced to give music classes to teenagers in a public school. He soon finds his world transformed by the power of music and friendships formed with his pupils.