Former professional player Chen Feng returned to his alma mater with an injured right knee and took over the "Iron Rhinos" football team that was on the verge of disbandment. Faced with the mess that had become a gilding field for the rich second generation, he dug out Zhao Xiaoshu, a logistics worker, the illegitimate son of a player who died ten years ago, and formed a "remnant team" bearing scars. From underground gambling traps to the shady world of capital manipulation, this group of teenagers tear apart the shadows with improved Asian Iron Curtain tactics. Amid concussion warnings and commercial erosion, they use steel defenses to hit the real end line.