The Hero of Swallow(2013)

The Hero of Swallow is a Chinese action drama set in war-torn Jinan, following a young man imprisoned for killing a thug to save his childhood friend. Behind bars, he suffers brutal treatment while training under a legendary inmate who becomes his mentor. When his teacher is murdered over a hidden treasure, the protagonist must navigate prison politics and danger to seek revenge. The series blends martial arts, crime, and personal redemption as it explores themes of loyalty, survival, and justice within the harsh confines of a wartime jail.