"The Corn Is Green" is a play by Emlyn Williams that tells the story of Miss Moffat, a determined schoolteacher who arrives in a Welsh mining village. She aims to educate the local children and improve their lives through learning, despite facing challenges from the community and its traditions. The narrative focuses on Moffat's relationship with a gifted student, Morgan Evans, whom she believes has the potential to escape the cycle of poverty. The play explores themes of ambition, education, and the impact of social class, highlighting the transformative power of knowledge in a struggling community.