"Unbroken" is a biography written by Laura Hillenbrand that tells the incredible life story of Louis Zamperini, an Olympic athlete and World War II bombardier. After surviving a plane crash in the Pacific Ocean, Zamperini endured weeks adrift at sea before being captured by the Japanese Navy. During his time as a prisoner of war, Zamperini faced brutal treatment and hardship but displayed remarkable resilience and determination. The book highlights themes of survival, forgiveness, and the human spirit's strength in the face of adversity, making it a powerful narrative of courage and hope.