Season 1

After Police Chief Tuan Lee is murdered, Nangang's biggest triad, Yi He, is plunged into unprecedented crisis when the newly appointed chief started targeting them.

Ah Han & Ah Bing quarrel over whether Yi He should "turn clean" and part on bad terms. When the smuggled goods are hijacked, Ah Bing survives an ambush thanks to a student.

Mr. Liang presents Yi He with an ultimatum: help him traffic drugs or face the consequences.

Ah Han calls for a council meeting but finds the elders fearful and unwilling to fight.

After being framed, Ah Qiang storms Yi He in anger, just as an assassin arrives to kill Ah Bing. Everyone mistakenly believes Ah Qiang sent the killer, and Yi He launches a manhunt against him.

Desperate, Ah Qiang steals Yi He's cash to defect to Liang's group & accidentally kills Fat Uncle in the process. Meanwhile, Uncle Bang expresses the desire to quit, stirring more discontent.