A group of rural boys joined the army and participated in a cruel war in a special period. After experiencing the baptism of blood and fire, and the entanglement of emotions and families, they understood that changes in life are often not decided by people themselves. Many external factors influence our lives and change our views on things through experience. Only the sky is always blue.
Concept: Thinking about life, changes in life are often not decided by people themselves. Many external factors affect our lives, and our views on things change through experience. Only the sky is always blue.